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Farmars Profit Calculating Rule. — auction comparables · Snaplot Comparables
We searched for
“Otis-King Farmer's Profit Calculator cylindrical slide rule”
(identified as
Otis-King
Farmer's Profit Calculator, confidence: High)
Typical realised range (Gemini estimate): £80-£250
10,000
comparables for
“Farmars Profit Calculating Rule.”
· page 1 of 417
· Sept 2013
AN OTIS KING SLIDE RULE POCKET CALCULATOR
£40
est
£40
–
—
· Sept 2013
AN OTIS KING SLIDE RULE POCKET CALCULATOR
£40
est
£40
–
—
Watches & Clocks
· Sept 2009
Cylindrical slide rule by Otis Formby King
£0
· Sept 2009
· Jul 2012
An Otis Kings patent slide rule calculator of cylindrical form, the telescop...
£35
est
£35
–
—
· May 2023
An Otis King Spiral slide rule model "L" calculator
£140
est
£140
–
—
· Jan 2009
An Otis King pocket cylindrical calculator
£100
est
£100
–
—
locatillc
· Oct 2022
Fuller Calculator Cylindrical Slide Rule
US$275
locatillc
· Oct 2022
Fuller Calculator Cylindrical Slide Rule
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
· Apr 2011
A Fuller's cylindrical slide rule calculator,
£300
est
£300
–
—
· Mar 2003
A Victorian cylindrical calculator/slide rule
£80
est
£80
–
—
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
· Aug 2025
An Otis King patent slide calculator
£25
est
£40
–
—
· May 2022
Otis King calculator
A$79
est
A$140
–
—
· May 2022
Otis King calculator
locatillc
· Oct 2022
Two Fuller Calculator Cylindrical Slide Rules
US$300
locatillc
· Oct 2022
Two Fuller Calculator Cylindrical Slide Rules
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
· May 2010
Rare American Cylindrical Slide Rule Calculator by Thacher
€500
est
€500
–
—
· Nov 2020
FULLER CYLINDRICAL SLIDE RULE CALCULATOR No 6858/37
US$1,530
est
US$1,530
–
—
· Nov 1995
An Otis King calculator
£79
est
£79
–
—
· Nov 1995
An Otis King calculator
· Apr 2005
A Stanley cylindrical slide rule and Fuller calculator,
£110
est
£110
–
—
· Dec 1996
Three Otis King calculators,
£276
est
£276
–
—
· Dec 1996
Three Otis King calculators,
· Nov 2025
A Fullers spiral cylindrical slide rule calculator with maho...
£20
est
£50
–
—
· Oct 2004
A mid 20th century telescopic slide rule 'Otis King's Pocket Calculator'
£0
est
£80
–
—
· May 2004
Farmars Profit Calculating Rule.
£32
est
£32
–
—
· May 2004
Farmars Profit Calculating Rule.
· Jun 2004
A cylindrical calculator / sliderule, Otis King C1293, London, circa 1950,
£35
est
£35
–
—
· Jul 1997
A farmer's slide-rule,
£276
est
£276
–
—
· Jul 1997
A farmer's slide-rule,
1
2
3
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417
Next →
Cylindrical slide rule by Otis Formby King
£0
Glass
· Jul 2012
An Otis Kings patent slide rule calculator of cylindrical form, the telescop...
£35
est
£35
–
—
Furniture, Design & Mirrors
· May 2023
An Otis King Spiral slide rule model "L" calculator
£140
est
£140
–
—
Toys & Collectables
· Jan 2009
An Otis King pocket cylindrical calculator
£100
est
£100
–
—
Furniture, Design & Mirrors
US$275
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
Nautica, Technica & Optic
· Apr 2011
A Fuller's cylindrical slide rule calculator,
£300
est
£300
–
—
Nautica, Technica & Optic
· Mar 2003
A Victorian cylindrical calculator/slide rule
£80
est
£80
–
—
Toys & Collectables
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
Nautica, Technica & Optic
· Aug 2025
An Otis King patent slide calculator
£25
est
£40
–
—
Nautica, Technica & Optic
A$79
est
A$140
–
—
Toys & Collectables
US$300
· Mar 2026
Otis King calculator, slide rule, two gas masks and a black ...
£45
Nautica, Technica & Optic
· May 2010
Rare American Cylindrical Slide Rule Calculator by Thacher
€500
est
€500
–
—
Toys & Collectables
· Nov 2020
FULLER CYLINDRICAL SLIDE RULE CALCULATOR No 6858/37
US$1,530
est
US$1,530
–
—
Lighting
£79
est
£79
–
—
Nautica, Technica & Optic
· Apr 2005
A Stanley cylindrical slide rule and Fuller calculator,
£110
est
£110
–
—
Vehicles
£276
est
£276
–
—
Nautica, Technica & Optic
· Nov 2025
A Fullers spiral cylindrical slide rule calculator with maho...
£20
est
£50
–
—
Lighting
· Oct 2004
A mid 20th century telescopic slide rule 'Otis King's Pocket Calculator'
£0
est
£80
–
—
Watches & Clocks
£32
est
£32
–
—
Toys & Collectables
· Jun 2004
A cylindrical calculator / sliderule, Otis King C1293, London, circa 1950,
£35
est
£35
–
—
Watches & Clocks
£276
est
£276
–
—
Nautica, Technica & Optic
Filters
Save search
Comparables
10,000
Median
£392
25–75% range
£87 – £2,310
Overall range
£0 – £55,177,648
Distribution
£0
£3,500
£7,500
£11,500
£15,000
