This page contains Cogswell & Harrison shotshell headstamp photos and production date ranges. The date ranges below are not exact but an estimation of production dates based on available information. If you are aware of evidence that proves a date range on a brand of
Cogswell & Harrison Ltd was formed in 1896 but they had a hundred-year history of gun making prior to this new company being formed. Cogswell & Harrison Ltd continued to produce guns but also introduced a line of shotshells. In 1907 an offshoot of the company was formed to supply wholesale cartridges and powder to the market, it was called the Cogswell & Harrison Manufacturing Company (CHMC). In 1909 an agreement was reached with Schultze Gunpowder company to supply them with CHMC shells in exchange for their powders, a joint company called Cogschultze was formed. 1911 saw Cogschultze become solely owned by Cogswell & Harrison when Schultze Powder Company was bought by Eley. The Cogschultze company appears to have been liquidated in 1919. Cogswell & Harrison was liquidated in 1932 but revived again in 1933. The last date shotshells were made is currently unknown.
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Headstamps
CHMC
Cogschultze London
Cogswell & Harrison
Cogswell & Harrison Ltd
Cogswell & Harrison London
CHMC | Gauge | Comments | Date Range |
|---|---|---|---|
 | 12 | CHMC began in 1907. I think 1911 is the latest possible date for CHMC. Photo courtesy of Jim Buchanan. | 1907 - 1911 |
 | 12 | I have dated this from the beginning of CHMC working with Schultze until the merger in 1909 to create Cogschultze. Photo courtesy of Jim Buchanan. | 1909 - 1911 |
Cogschultze London | Gauge | Comments | Date Range |
|---|---|---|---|
 | No 12 | Cogschultze was formed in 1911 and liquidated in 1919. Photo courtesy of Jim Buchanan. | 1911 - 1919 |
Cogswell & Harrison | Gauge | Comments | Date Range |
|---|---|---|---|
 | 12 | This shell is a 'Victor' which was trademarked in 1897. No Ltd in company name may make this the first headstamp style. Photo courtesy of Jim Buchanan | 1897 - early 1900's |
 | 12 | This shell is a 'Victor' which was trademarked in 1897. No Ltd in company name may make this the first headstamp style. Photo courtesy of Jim Buchanan | 1897 - early 1900's |
 | 12 | This shell is a 'Victor' which was trademarked in 1897. No Ltd in company name may make this the first headstamp style. May have been an export shell for France. Photo courtesy of Jim Buchanan | 1897 - early 1900's |
 | 16 | This shell is a 'Victor' which was trademarked in 1897. No Ltd in company name may make this the first headstamp style. Photo courtesy of Jim Buchanan | 1897 - early 1900's |
Cogswell & Harrison Ltd | Gauge | Comments | Date Range |
|---|---|---|---|
 | 12 | This style of headstamp is seen in an 1898 advert. A 1924 advert shows the 'London' headstamp. Photo courtesy of Jim Buchanan. | 1898 - 1924 |
 | 12 | This style of headstamp is seen in an 1898 advert. A 1924 advert shows the 'London' headstamp. Photo courtesy of Jim Buchanan. | 1898 - 1924 |
 | 12 | This style of headstamp is seen in an 1898 advert. A 1924 advert shows the 'London' headstamp. Photo courtesy of Jim Buchanan. | 1898 - 1924 |
Cogswell & Harrison London | Gauge | Comments | Date Range |
|---|---|---|---|
 | 12 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |
 | 12 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |
 | 12 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |
 | 14 3/4 | Only introduced experimentally in 1912. Photo courtesy of Jim Buchanan. | 1912 |
 | 16 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |
 | 20 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |
 | 20 | The first instance of this headstamp I can find is in a 1924 advert. End date is from the companies liquidation date. Photo courtesy of Jim Buchanan. | 1924 - 1932 |