No published sn data available.
Diamond Arms was a tradename used by the Shapleigh Hardware Company of St Louis on shotguns they retailed via mail-order catalog. PROBABLY made by Crescent, although possibly by Stevens or Hopkins & Allen. Would have to see the gun to be sure. Exact age will be impossible to determine, but a safe bet is pre-World War II. sales@countrygunsmith.net
The Diamond Age was created in 1995.
The Diamond Age has 455 pages.
DIAMOND ARMS CO was a tradename used by Shapleigh Hardware in St Louis for many years. The guns have been made by many different manufacturers over the years and no serial number records exist. Value is uniformly under $100.
MISSISSIPPI VALLEY ARMS CO was a tradename used by Shapleigh Hardware of St. Louis on shotguns made by Crescent Fire Arms Company, 1893-1930. A .410 would be unlikely to have been made by Crescent before WWI. 1903
10+
".410 or 12MM" and "One Piece Barrel" are marks used by Harrington and Richardson, 1877 to 1985. Diamond Arms was a trade name used by Shapleigh Hardware of St Louis. Your gun probably dates to sometime between the two World Wars.
I think that you age the same, possibly slower.
These were made between 1926 and 1945 and will sell between $25 and $75, possibly over $100 if in absoulutely like-new condition.
I would contact Savage arms directly.They should be able to help you age your rifle.
David Diamond died on June 13, 2005 at the age of 89.