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Diving helmet — auction comparables · Snaplot Comparables
We searched for
“Siebe Gorman 12-Bolt diving helmet”
(identified as
Siebe Gorman & Co. Ltd.
12-Bolt Standard Pattern, confidence: High)
Typical realised range (Gemini estimate): £8,000-£25,000
10,000
comparables for
“Diving helmet”
· page 1 of 417
· May 2004
A 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD
£2,390
est
£2,390
–
—
· May 2004
A 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD
£2,390
est
£2,390
–
—
Nautica, Technica & Optic
· Nov 2006
A SIEBE, GORMAN & CO. LTD 12-BOLT DIVING HELMET AND ACCESSORIES
£4,800
est
£4,800
–
—
· May 1998
A Siebe Gorman & Co 12 bolt diving helmet, circa 1890-1895
£3,163
est
£3,163
–
—
· Nov 2005
A 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD., NO 7999
£1,440
est
£1,440
–
—
· May 1998
A Siebe, Gorman and Company, Ltd 6-bolt diving helmet
£1,725
est
£1,725
–
—
· May 2000
A mid-20th Century 12-Bolt diving helmet by Siebe, Gorman & Co. Ltd. (unmatched)
£2,115
est
£2,115
–
—
· Nov 1998
A Siebe, Gorman & Co. 12-bolt diving helmet, circa 1900-1910, numbered 5926 (matching)
£2,185
est
£2,185
–
—
· Jun 2021
An early 20th century two bolt diving helmet marked Siebe Gorman
DKK 3,220
est
DKK 28,000
–
—
· Sept 2021
Attributed to Siebe Gorman, 20th century | 12 Bolt Diver's Helmet
£1,000
est
£1,000
–
—
· Nov 1999
A Siebe Gorman & Coo. Ltd. 12-bolt diving helmet, matching number 13055, circa 1920-1930???
£2,300
est
£2,300
–
—
· Dec 2014
SIEBE GORMAN & CO - Diving suit helmet
€2,500
est
€2,500
–
—
· Dec 2014
SIEBE GORMAN & CO - Diving suit helmet
· Apr 2015
A presentation model Siebe Gorman six bolt diving helmet, 3x3x4.5ins.(7.5x7.5x11.5cm)
£300
est
£300
–
—
· Jun 2002
A 12-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE, GORMAN & CO., CIRCA 1910
£4,700
est
£4,700
–
—
· Jun 2025
A six bolt diving helmet, maker Siebe Gorman & Co London. no...
£2,600
est
£3,000
–
—
· Mar 2011
12 bolt diving helmet
US$10,625
est
US$10,625
–
—
· Mar 2011
12 bolt diving helmet
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO LTD, NUMBER 18847
£3,525
est
£3,525
–
—
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NUMBER 19095
£3,290
est
£3,290
–
—
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO LTD, NUMBER 19073
£3,290
est
£3,290
–
—
· May 2003
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NUMBER 19095
£4,113
est
£4,113
–
—
· May 2000
A 12 bolt diving helmet by Siebe Gorman & Co.Ltd. number 9265 (matching), circa 1920-1930
£2,350
est
£2,350
–
—
· May 1998
A twelve-bolt Siebe Gorman & Co Ltd diving helmet, late 1940's
£1,610
est
£1,610
–
—
· May 2000
A 12-Bolt Siebe, Gorman & Co.Ltd "Pearler" diving helmet, number 17320 (matching) circa 1950's
£3,290
est
£3,290
–
—
· May 1999
A 12-bolt diving helmet by Siebe & Gorman, number 1921 (matching), circa late 1870's
£3,680
est
£3,680
–
—
· Jan 2026
A DISPLAY BRASS AND COPPER TEN BOLT DIVING HELMET BY SIEBE GORMAN
£320
est
£300
–
—
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· Nov 2006
A SIEBE, GORMAN & CO. LTD 12-BOLT DIVING HELMET AND ACCESSORIES
£4,800
est
£4,800
–
—
Arts & Graphics
· May 1998
A Siebe Gorman & Co 12 bolt diving helmet, circa 1890-1895
£3,163
est
£3,163
–
—
Nautica, Technica & Optic
· Nov 2005
A 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD., NO 7999
£1,440
est
£1,440
–
—
Nautica, Technica & Optic
· May 1998
A Siebe, Gorman and Company, Ltd 6-bolt diving helmet
£1,725
est
£1,725
–
—
Nautica, Technica & Optic
· May 2000
A mid-20th Century 12-Bolt diving helmet by Siebe, Gorman & Co. Ltd. (unmatched)
£2,115
est
£2,115
–
—
Nautica, Technica & Optic
· Nov 1998
A Siebe, Gorman & Co. 12-bolt diving helmet, circa 1900-1910, numbered 5926 (matching)
£2,185
est
£2,185
–
—
Nautica, Technica & Optic
· Jun 2021
An early 20th century two bolt diving helmet marked Siebe Gorman
DKK 3,220
est
DKK 28,000
–
—
Ethnographical
· Sept 2021
Attributed to Siebe Gorman, 20th century | 12 Bolt Diver's Helmet
£1,000
est
£1,000
–
—
Nautica, Technica & Optic
· 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
€2,500
est
€2,500
–
—
Arts & Graphics
· Apr 2015
A presentation model Siebe Gorman six bolt diving helmet, 3x3x4.5ins.(7.5x7.5x11.5cm)
£300
est
£300
–
—
Arts & Graphics
· Jun 2002
A 12-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE, GORMAN & CO., CIRCA 1910
£4,700
est
£4,700
–
—
Nautica, Technica & Optic
· Jun 2025
A six bolt diving helmet, maker Siebe Gorman & Co London. no...
£2,600
est
£3,000
–
—
Nautica, Technica & Optic
US$10,625
est
US$10,625
–
—
Furniture, Design & Mirrors
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO LTD, NUMBER 18847
£3,525
est
£3,525
–
—
Nautica, Technica & Optic
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NUMBER 19095
£3,290
est
£3,290
–
—
Nautica, Technica & Optic
· Jun 2002
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO LTD, NUMBER 19073
£3,290
est
£3,290
–
—
Nautica, Technica & Optic
· May 2003
A COPPER AND BRASS 12-BOLT DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NUMBER 19095
£4,113
est
£4,113
–
—
Nautica, Technica & Optic
· May 2000
A 12 bolt diving helmet by Siebe Gorman & Co.Ltd. number 9265 (matching), circa 1920-1930
£2,350
est
£2,350
–
—
Nautica, Technica & Optic
· May 1998
A twelve-bolt Siebe Gorman & Co Ltd diving helmet, late 1940's
£1,610
est
£1,610
–
—
Nautica, Technica & Optic
· May 2000
A 12-Bolt Siebe, Gorman & Co.Ltd "Pearler" diving helmet, number 17320 (matching) circa 1950's
£3,290
est
£3,290
–
—
Nautica, Technica & Optic
· May 1999
A 12-bolt diving helmet by Siebe & Gorman, number 1921 (matching), circa late 1870's
£3,680
est
£3,680
–
—
Nautica, Technica & Optic
· Jan 2026
A DISPLAY BRASS AND COPPER TEN BOLT DIVING HELMET BY SIEBE GORMAN
£320
est
£300
–
—
Nautica, Technica & Optic
Filters
Save search
Comparables
10,000
Median
£211
25–75% range
£56 – £980
Overall range
£0 – £66,555,000
Distribution
£0
£1,400
£3,000
£4,600
£6,000
