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Diving helmet — auction comparables · Snaplot Comparables
We searched for
“Siebe Gorman diving helmet copper brass”
(identified as
Siebe Gorman & Co. Ltd.
, confidence: High)
Typical realised range (Gemini estimate): £5,000-£15,000
10,000
comparables for
“Diving helmet”
· page 1 of 417
· Jan 2026
A DISPLAY BRASS AND COPPER TEN BOLT DIVING HELMET BY SIEBE GORMAN
£320
est
£300
–
—
· Jan 2026
A DISPLAY BRASS AND COPPER TEN BOLT DIVING HELMET BY SIEBE GORMAN
£320
est
£300
–
—
Nautica, Technica & Optic
· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
· Dec 2014
SIEBE GORMAN & CO - Diving suit helmet
€2,500
est
€2,500
–
—
· Dec 2014
SIEBE GORMAN & CO - Diving suit helmet
· Jun 2002
A 12-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE, GORMAN & CO., CIRCA 1910
£4,700
est
£4,700
–
—
· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
· 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 2005
A 6-BOLT ADMIRALTY-PATTERN COPPER AND BRASS DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NO.11419
£2,160
est
£2,160
–
—
· Jun 2017
A GOOD ORIGINAL SIEBE GORMAN DIVING HELMET with
£2,200
est
£2,200
–
—
· Jul 2016
Beautiful copper / brass diving helmet
€9,700
est
€9,700
–
—
· Jul 2016
Beautiful copper / brass diving helmet
· Jun 2002
A SIEBE, GORMAN & CO LTD. 12-BOLT COPPER AND BRASS DIVING HELMET, NO. 17634, CIRCA 1950'S
£2,820
est
£2,820
–
—
· Sept 2018
A reproduction copper & brass diving helmet
A$66
est
A$120
–
—
· May 1998
A Siebe, Gorman and Company, Ltd 6-bolt diving helmet
£1,725
est
£1,725
–
—
· 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
· Oct 2022
Vintage Mini Copper & Brass Diving Helmet
US$35
est
US$35
–
—
· Oct 2022
· Jun 2011
446: COPPER & BRASS FAUX DIVING HELMET
US$100
est
US$100
–
—
· Jun 2011
· May 2001
A mid-20th Century 12-bolt copper and brass diving helmet by Siebe, Gorman & Co. Ltd, matching number 15052
£2,820
est
£2,820
–
—
· Dec 2011
A Siebe Gorman & Co brass and copper diver's
£3,675
est
£3,675
–
—
· Sept 2017
US Navy copper & brass diving helmet
US$350
est
US$350
–
—
· Sept 2017
· Nov 2025
SIEBE GORMAN & CO; an original copper and brass six bolt deep sea diver's helmet
£3,400
est
£2,000
–
—
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· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
Jewellery & Gems
· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
Jewellery & Gems
€2,500
est
€2,500
–
—
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
· Feb 2012
A SIX-BOLT COPPER AND BRASS DIVING HELMET BY SIEBE
£2,900
est
£2,900
–
—
Toys & Collectables
· 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 2005
A 6-BOLT ADMIRALTY-PATTERN COPPER AND BRASS DIVING HELMET BY SIEBE, GORMAN & CO. LTD, NO.11419
£2,160
est
£2,160
–
—
Nautica, Technica & Optic
· Jun 2017
A GOOD ORIGINAL SIEBE GORMAN DIVING HELMET with
£2,200
est
£2,200
–
—
Asian Art
€9,700
est
€9,700
–
—
Furniture, Design & Mirrors
· Jun 2002
A SIEBE, GORMAN & CO LTD. 12-BOLT COPPER AND BRASS DIVING HELMET, NO. 17634, CIRCA 1950'S
£2,820
est
£2,820
–
—
Nautica, Technica & Optic
· Sept 2018
A reproduction copper & brass diving helmet
A$66
est
A$120
–
—
Asian Art
· May 1998
A Siebe, Gorman and Company, Ltd 6-bolt diving helmet
£1,725
est
£1,725
–
—
Nautica, Technica & Optic
US$500
est
US$500
–
—
Furniture, Design & Mirrors
10in Copper & Brass Diving Helmet / Bell
US$140
est
US$140
–
—
Tin & Metals
Vintage Mini Copper & Brass Diving Helmet
US$35
est
US$35
–
—
Tin & Metals
446: COPPER & BRASS FAUX DIVING HELMET
US$100
est
US$100
–
—
Lighting
· May 2001
A mid-20th Century 12-bolt copper and brass diving helmet by Siebe, Gorman & Co. Ltd, matching number 15052
£2,820
est
£2,820
–
—
Nautica, Technica & Optic
· Dec 2011
A Siebe Gorman & Co brass and copper diver's
£3,675
est
£3,675
–
—
Arts & Graphics
US Navy copper & brass diving helmet
US$350
est
US$350
–
—
Arts & Graphics
· Nov 2025
SIEBE GORMAN & CO; an original copper and brass six bolt deep sea diver's helmet
£3,400
est
£2,000
–
—
Lighting
Filters
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Comparables
10,000
Median
£164
25–75% range
£42 – £679
Overall range
£0 – £71,938,128
Distribution
£0
£1,400
£3,000
£4,600
£6,000
