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Copper shell — auction comparables · Snaplot Comparables
We searched for
“Siebe Gorman copper diving helmet”
(identified as
Siebe Gorman & Co. Ltd.
, confidence: High)
Typical realised range (Gemini estimate): £5,000-£30,000
501
comparables for
“Copper shell”
· page 3 of 21
· May 2001
A Siebe, Gorman & Co Ltd 6-bolt Admiralty Pattern diving helmet, matching number 11642
£2,350
est
£2,350
–
—
· May 2001
A Siebe, Gorman & Co Ltd 6-bolt Admiralty Pattern diving helmet, matching number 11642
£2,350
est
£2,350
–
—
Nautica, Technica & Optic
· May 2000
A light weight 3-Bolt diving helmet by Siebe, Gorman & Co Ltd, number unfound
£2,115
est
£2,115
–
—
· Nov 2025
SIEBE GORMAN & CO; an original copper and brass six bolt deep sea diver's helmet
£3,400
est
£2,000
–
—
· Sept 2017
A copper model diving helmet
US$20
est
US$20
–
—
· Sept 2017
A copper model diving helmet
· Nov 2016
A MINIATURE COPPER DIVING HELMET
A$56
est
A$90
–
—
· Nov 2016
A MINIATURE COPPER DIVING HELMET
· Aug 2016
A SMALL COPPER DIVING HELMET
A$69
est
A$120
–
—
· Aug 2016
A SMALL COPPER DIVING HELMET
· Apr 2026
SIEBE GORMAN & CO LTD; a Spirelmo ‘B’ Smoke Helmet
£540
· May 1999
A Siebe Gorman & Co. Ltd smoke helmet and bellows
£115
est
£115
–
—
· May 2000
A Siebe, Gorman & Co. Ltd. diving knife
£212
est
£212
–
—
· May 2000
A Siebe, Gorman & Co. Ltd. diving knife
· Nov 1999
A Siebe Gorman diving knife, circa 1900??
£224
est
£224
–
—
· Nov 1999
A Siebe Gorman diving knife, circa 1900??
· Jul 2016
Beautiful copper / brass diving helmet
€9,700
est
€9,700
–
—
· Jul 2016
Beautiful copper / brass diving helmet
· Apr 2016
Copper diving helmet, decorative item.
€6,500
est
€6,500
–
—
· Apr 2016
Copper diving helmet, decorative item.
· Nov 1999
A Siebe Gorman & Coo. Ltd. 12-bolt diving helmet, matching number 13055, circa 1920-1930???
£2,300
est
£2,300
–
—
· May 2000
Two Siebe, Gorman & Co. Ltd. diving knives
£376
est
£376
–
—
· May 2000
Two Siebe, Gorman & Co. Ltd. diving knives
· Nov 1998
A Siebe Gorman & Co Ltd "Davis" pattern diving helmet, number 8677 (matching), circa 1920-1930
£2,415
est
£2,415
–
—
· Sept 2018
A reproduction copper & brass diving helmet
A$66
est
A$120
–
—
· Dec 2011
A Siebe Gorman & Co brass and copper diver's
£3,675
est
£3,675
–
—
· Sept 2013
Copper and Brass Scuba Diving Helmet
US$500
est
US$500
–
—
· Sept 2013
Copper and Brass Scuba Diving Helmet
· Sept 2022
10in Copper & Brass Diving Helmet / Bell
US$140
est
US$140
–
—
· Sept 2022
10in Copper & Brass Diving Helmet / Bell
· Oct 2016
Copper diving helmet in actual size
€22,000
est
€22,000
–
—
· Oct 2016
Copper diving helmet in actual size
· Jun 2016
Miniature Diving helmet - copper and glass
€4,600
est
€4,600
–
—
· Jun 2016
Miniature Diving helmet - copper and glass
· Oct 2022
Vintage Mini Copper & Brass Diving Helmet
US$35
est
US$35
–
—
· Oct 2022
Vintage Mini Copper & Brass Diving Helmet
· Jun 2011
446: COPPER & BRASS FAUX DIVING HELMET
US$100
est
US$100
–
—
· Jun 2011
446: COPPER & BRASS FAUX DIVING HELMET
· Apr 2012
Siebe Gorman & Co. Ltd. Diving Apparatus and other
£520
est
£520
–
—
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· May 2000
A light weight 3-Bolt diving helmet by Siebe, Gorman & Co Ltd, number unfound
£2,115
est
£2,115
–
—
Nautica, Technica & Optic
· Nov 2025
SIEBE GORMAN & CO; an original copper and brass six bolt deep sea diver's helmet
£3,400
est
£2,000
–
—
Lighting
US$20
est
US$20
–
—
Furniture, Design & Mirrors
A$56
est
A$90
–
—
Furniture, Design & Mirrors
A$69
est
A$120
–
—
Furniture, Design & Mirrors
· Apr 2026
SIEBE GORMAN & CO LTD; a Spirelmo ‘B’ Smoke Helmet
£540
Nautica, Technica & Optic
· May 1999
A Siebe Gorman & Co. Ltd smoke helmet and bellows
£115
est
£115
–
—
Nautica, Technica & Optic
£212
est
£212
–
—
Nautica, Technica & Optic
£224
est
£224
–
—
Nautica, Technica & Optic
€9,700
est
€9,700
–
—
Furniture, Design & Mirrors
€6,500
est
€6,500
–
—
Furniture, Design & Mirrors
· Nov 1999
A Siebe Gorman & Coo. Ltd. 12-bolt diving helmet, matching number 13055, circa 1920-1930???
£2,300
est
£2,300
–
—
Nautica, Technica & Optic
£376
est
£376
–
—
Nautica, Technica & Optic
· Nov 1998
A Siebe Gorman & Co Ltd "Davis" pattern diving helmet, number 8677 (matching), circa 1920-1930
£2,415
est
£2,415
–
—
Nautica, Technica & Optic
· Sept 2018
A reproduction copper & brass diving helmet
A$66
est
A$120
–
—
Asian Art
· Dec 2011
A Siebe Gorman & Co brass and copper diver's
£3,675
est
£3,675
–
—
Arts & Graphics
US$500
est
US$500
–
—
Furniture, Design & Mirrors
US$140
est
US$140
–
—
Tin & Metals
€22,000
est
€22,000
–
—
Miscellaneous
€4,600
est
€4,600
–
—
Furniture, Design & Mirrors
US$35
est
US$35
–
—
Tin & Metals
US$100
est
US$100
–
—
Lighting
· Apr 2012
Siebe Gorman & Co. Ltd. Diving Apparatus and other
£520
est
£520
–
—
Books, Maps & Manuscripts
Filters
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Comparables
501
Median
£414
25–75% range
£83 – £2,550
Overall range
£0 – £2,233,651
Distribution
£0
£3,500
£7,500
£11,000
£14,500
