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Computing — auction comparables · Snaplot Comparables
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Comparables
1,056
Median
£400
Suggested estimate
£140 – £640
25–75% range
£137 – £1,000
Overall range
£1 – £120,650
Distribution
£0
£700
£1,500
£2,200
£2,900
Sell-through
99%
of lots sold
39%
at premier salerooms
Trend
↘ falling -73% over 8y
Median from
417
sold in the last 36 months
·
hammer prices, excl. buyer's premium — fair-market auction value (retail/insurance replacement runs higher)
1,125
comparables for
“Computing”
· page 44 of 47
Cite comps
CSV
· Jul 2026
Vintage Commodore VIC-20 Personal Computer Set
US$55
· Jul 2026
Vintage Commodore VIC-20 Personal Computer Set
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US$55
Other
· Nov 2017
Seiko Flightmaster Pilot - Slide Rule Chronograph
€22,500
est
€22,500
–
—
· Nov 2017
Seiko Flightmaster Pilot - Slide Rule Chronograph
€22,500
est
€22,500
–
—
Miscellaneous
· Nov 2016
A set of 5 "vintage" books about Computers & Programming Language - 1958/1963
€100
est
€100
–
—
· Nov 2016
A set of 5 "vintage" books about Computers & Programming Language - 1958/1963
€100
est
€100
–
—
Books, Maps & Manuscripts
· May 2026
Thomas de Colmar Arithmometer, Mechanical Calculator
£1,375
est
£600
–
—
· May 2026
Thomas de Colmar Arithmometer, Mechanical Calculator
£1,375
est
£600
–
—
Toys & Collectables
· Oct 2025
The Secret Life of Bletchley Park Sinclair McKay Signed Paperback book and Moonlight Serenade Secret Skies over Bletchley Park signed by Philomena Liggins. Bletchley Park was where one of the war's most famous - and crucial - achievements was made: the cracking of Germany's "Enigma" code in which its most important military communications were couched. This country house in the Buckinghamshire countryside was home to Britain's most brilliant mathematical brains, like Alan Turing, and the scene of immense advances in technology - indeed, the birth of modern computing. The military codes deciphered there were instrumental in turning both the Battle of the Atlantic and the war in North Africa. But though plenty has been written about the boffins, and the codebreaking, fictional and non-fiction - from Robert Harris and Ian McEwan to Andrew Hodges' biography of Turing - what of the thousands of men and women who lived and worked there during the war? What was lifelike for them - an odd, secret territory between the civilian and the military? Sinclair McKay's book is the first history for the general reader of life at Bletchley Park, and an amazing compendium of memories from people now in their eighties - of skating on the frozen lake in the grounds (a depressed Angus Wilson, the novelist, once threw himself in) - of a youthful Roy Jenkins, useless at codebreaking, of the high jinks at nearby accommodation hostels - and of the implacable secrecy that meant girlfriend and boyfriend working in adjacent huts knew nothing about each other's work. Philomena is a writer of short historical novels including, "Footprints - Secret Lives at Bletchley Park" and "Moonlight Serenade - Secret Skies Over Bletchley Park". Good condition. All autographs come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £5.99, EU from £7.99, Rest of World from £9.99
£20
· Oct 2025
The Secret Life of Bletchley Park Sinclair McKay Signed Paperback book and Moonlight Serenade Secret Skies over Bletchley Park signed by Philomena Liggins. Bletchley Park was where one of the war's most famous - and crucial - achievements was made: the cracking of Germany's "Enigma" code in which its most important military communications were couched. This country house in the Buckinghamshire countryside was home to Britain's most brilliant mathematical brains, like Alan Turing, and the scene of immense advances in technology - indeed, the birth of modern computing. The military codes deciphered there were instrumental in turning both the Battle of the Atlantic and the war in North Africa. But though plenty has been written about the boffins, and the codebreaking, fictional and non-fiction - from Robert Harris and Ian McEwan to Andrew Hodges' biography of Turing - what of the thousands of men and women who lived and worked there during the war? What was lifelike for them - an odd, secret territory between the civilian and the military? Sinclair McKay's book is the first history for the general reader of life at Bletchley Park, and an amazing compendium of memories from people now in their eighties - of skating on the frozen lake in the grounds (a depressed Angus Wilson, the novelist, once threw himself in) - of a youthful Roy Jenkins, useless at codebreaking, of the high jinks at nearby accommodation hostels - and of the implacable secrecy that meant girlfriend and boyfriend working in adjacent huts knew nothing about each other's work. Philomena is a writer of short historical novels including, "Footprints - Secret Lives at Bletchley Park" and "Moonlight Serenade - Secret Skies Over Bletchley Park". Good condition. All autographs come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £5.99, EU from £7.99, Rest of World from £9.99
· Sept 2024
C5 Inventor Clive Sinclair and Proff H Hankins signed scarce Benham official 1982 Information Technology FDC BOCS(2)14. Sir Clive Marles Sinclair (30 July 1940 - 16 September 2021) was an English entrepreneur and inventor, best known for being a pioneer in the computing industry and also as the founder of several companies that developed consumer electronics in the 1970s and early 1980s. After spending several years as assistant editor of Instrument Practice, Sinclair founded Sinclair Radionics Ltd in 1961. He produced the world's first slimline electronic pocket calculator (the Sinclair Executive) in 1972. Sinclair then moved into the production of home computers in 1980 with Sinclair Research Ltd, producing the Sinclair ZX80 (the UK's first mass-market home computer for less than £100) and in the early 1980s, the ZX81, ZX Spectrum and the Sinclair QL. Sinclair Research is widely recognised for its importance in the early days of the British and European home computer industry, as well as helping to give rise to the British video game industry. Sinclair also had several commercial failures, including the Sinclair Radionics Black Watch wristwatch, the Sinclair Vehicles C5 battery electric vehicle, and the Sinclair Research TV80 flatscreen CRT handheld television set. The failure of the C5, along with a weakened computer market, forced Sinclair to sell most of his companies by 1986. Through 2010, Sinclair concentrated on personal transport, including the A-bike, a folding bicycle for commuters which was small enough to fit in a handbag.[2] He also developed the Sinclair X-1, a revised version of the C5 electric vehicle, which never made it to the market. Good condition. All autographs come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £5.99, EU from £7.99, Rest of World from £9.99
£55
· Sept 2024
C5 Inventor Clive Sinclair and Proff H Hankins signed scarce Benham official 1982 Information Technology FDC BOCS(2)14. Sir Clive Marles Sinclair (30 July 1940 - 16 September 2021) was an English entrepreneur and inventor, best known for being a pioneer in the computing industry and also as the founder of several companies that developed consumer electronics in the 1970s and early 1980s. After spending several years as assistant editor of Instrument Practice, Sinclair founded Sinclair Radionics Ltd in 1961. He produced the world's first slimline electronic pocket calculator (the Sinclair Executive) in 1972. Sinclair then moved into the production of home computers in 1980 with Sinclair Research Ltd, producing the Sinclair ZX80 (the UK's first mass-market home computer for less than £100) and in the early 1980s, the ZX81, ZX Spectrum and the Sinclair QL. Sinclair Research is widely recognised for its importance in the early days of the British and European home computer industry, as well as helping to give rise to the British video game industry. Sinclair also had several commercial failures, including the Sinclair Radionics Black Watch wristwatch, the Sinclair Vehicles C5 battery electric vehicle, and the Sinclair Research TV80 flatscreen CRT handheld television set. The failure of the C5, along with a weakened computer market, forced Sinclair to sell most of his companies by 1986. Through 2010, Sinclair concentrated on personal transport, including the A-bike, a folding bicycle for commuters which was small enough to fit in a handbag.[2] He also developed the Sinclair X-1, a revised version of the C5 electric vehicle, which never made it to the market. Good condition. All autographs come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £5.99, EU from £7.99, Rest of World from £9.99
· Jun 2026
* An Assortment of Consumer Electronics, Household Appliances, and Apparel Including 8 Cartons
£70
· Jun 2026
* An Assortment of Consumer Electronics, Household Appliances, and Apparel Including 8 Cartons
£70
Other
eaglescorps
· May 2025
Original WWII Norden Bombsight M-9B With Type x-1 Reflex Site
US$2,250
eaglescorps
· May 2025
Original WWII Norden Bombsight M-9B With Type x-1 Reflex Site
US$2,250
Wine & Spirits
· May 2026
A Rare Late 17th-Century English Fruitwood Set of Napier's Cylindrical Bones
£28,750
est
£8,000
–
—
· May 2026
A Rare Late 17th-Century English Fruitwood Set of Napier's Cylindrical Bones
£28,750
est
£8,000
–
—
Nautica, Technica & Optic
· Jul 2014
Old & are; Henry Crouch - A complete view of the British Customs Containing, I.A perfect and distinct account of the several particular branches... V
€7,000
est
€7,000
–
—
· Jul 2014
Old & are; Henry Crouch - A complete view of the British Customs Containing, I.A perfect and distinct account of the several particular branches... V
€7,000
est
€7,000
–
—
Books, Maps & Manuscripts
· Mar 2026
Thomas de Colmar Arithmometer, Mechanical Calculator
£525
est
£600
–
—
· Mar 2026
Thomas de Colmar Arithmometer, Mechanical Calculator
£525
est
£600
–
—
Books, Maps & Manuscripts
· Oct 2017
Collector's item
€3,000
est
€3,000
–
—
· Oct 2017
Collector's item
€3,000
est
€3,000
–
—
Miscellaneous
· Feb 2023
1989 MATTEL POWER GLOVE FOR THE NINTENDO NES WITH SENSOR BARS
US$160
· Feb 2023
1989 MATTEL POWER GLOVE FOR THE NINTENDO NES WITH SENSOR BARS
US$160
Other
· Apr 2023
NINTENDO GAMEBOY WITH VIDEO GAMES IN TALL CASE SUPER MARIO TETRIS
US$500
· Apr 2023
NINTENDO GAMEBOY WITH VIDEO GAMES IN TALL CASE SUPER MARIO TETRIS
US$500
Other
· Dec 2022
PIONEER TUNER & CD PLAYER
US$20
· Dec 2022
PIONEER TUNER & CD PLAYER
US$20
Other
· Dec 2025
Ada Lovelace (Augusta Ada King, Countess of Lovelace, née Byron, 1815-1852)
£4,200
est
£5,000
–
—
· Dec 2025
Ada Lovelace (Augusta Ada King, Countess of Lovelace, née Byron, 1815-1852)
£4,200
est
£5,000
–
—
Books, Maps & Manuscripts
· Aug 2023
YAMAHA PSR-12 KEYBOARD
US$10
· Aug 2023
YAMAHA PSR-12 KEYBOARD
US$10
Other
no image
abebooks
"Sur la planète qui produit les anomalies obervées dans le mouvement d Uranus" in Comptes rendus hebdomadaires des séances de l'academie des sciences by LE VERRIER, Urbain Jean Joseph: (1846) FIRST EDITIONS. | B & L Rootenberg Rare Books, ABAA
£3,866
no image
abebooks
"Sur la planète qui produit les anomalies obervées dans le mouvement d Uranus" in Comptes rendus hebdomadaires des séances de l'academie des sciences by LE VERRIER, Urbain Jean Joseph: (1846) FIRST EDITIONS. | B & L Rootenberg Rare Books, ABAA
£3,866
Books, Maps & Manuscripts
· Jun 2023
MARANTZ STEREO ST 70 TUNER & CD PLAYER
US$10
· Jun 2023
MARANTZ STEREO ST 70 TUNER & CD PLAYER
US$10
Other
· Oct 2023
PIONEER LASERDISC PLAYER IN BOX
US$100
· Oct 2023
PIONEER LASERDISC PLAYER IN BOX
US$100
Other
· Nov 2023
MAGNAVOX VHS MOVIE MAKER CVX300 OUTFIT IN CASE
US$10
· Nov 2023
MAGNAVOX VHS MOVIE MAKER CVX300 OUTFIT IN CASE
US$10
Other
· Nov 2016
Collection of 90 books about Artificial Intelligence - 1954 - 2000
€5,000
est
€5,000
–
—
· Nov 2016
Collection of 90 books about Artificial Intelligence - 1954 - 2000
€5,000
est
€5,000
–
—
Books, Maps & Manuscripts
· Oct 2022
NINTENDO GAME BOY DMG-01 AND GAMES ZELDA ULTIMA
US$180
· Oct 2022
NINTENDO GAME BOY DMG-01 AND GAMES ZELDA ULTIMA
US$180
Other
· Mar 2026
COMMODORE 16 MICRO COMPUTER BOXED
£75
est
£30
–
—
· Mar 2026
COMMODORE 16 MICRO COMPUTER BOXED
£75
est
£30
–
—
Nautica, Technica & Optic
£20
Other
£55
Other
![C5 Inventor Clive Sinclair and Proff H Hankins signed scarce Benham official 1982 Information Technology FDC BOCS(2)14. Sir Clive Marles Sinclair (30 July 1940 - 16 September 2021) was an English entrepreneur and inventor, best known for being a pioneer in the computing industry and also as the founder of several companies that developed consumer electronics in the 1970s and early 1980s. After spending several years as assistant editor of Instrument Practice, Sinclair founded Sinclair Radionics Ltd in 1961. He produced the world's first slimline electronic pocket calculator (the Sinclair Executive) in 1972. Sinclair then moved into the production of home computers in 1980 with Sinclair Research Ltd, producing the Sinclair ZX80 (the UK's first mass-market home computer for less than £100) and in the early 1980s, the ZX81, ZX Spectrum and the Sinclair QL. Sinclair Research is widely recognised for its importance in the early days of the British and European home computer industry, as well as helping to give rise to the British video game industry. Sinclair also had several commercial failures, including the Sinclair Radionics Black Watch wristwatch, the Sinclair Vehicles C5 battery electric vehicle, and the Sinclair Research TV80 flatscreen CRT handheld television set. The failure of the C5, along with a weakened computer market, forced Sinclair to sell most of his companies by 1986. Through 2010, Sinclair concentrated on personal transport, including the A-bike, a folding bicycle for commuters which was small enough to fit in a handbag.[2] He also developed the Sinclair X-1, a revised version of the C5 electric vehicle, which never made it to the market. Good condition. All autographs come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £5.99, EU from £7.99, Rest of World from £9.99](/img/aHR0cHM6Ly9iaWRzcGlyaXQtaW1hZ2VzLmdsb2JhbC5zc2wuZmFzdGx5Lm5ldC9jaGF1Y2VyYXVjdGlvbnMvY2xvbmVkLWltYWdlcy8xNjkyOTgvMDAxLzAwMS5qcGc.Il4ebgympfGyJZ9xniCvcg)
