FMJ simply means Full Metal Jacket (no exposed lead on the bullet) and does not refer to a make of gun, but a style of ammunition. The link below is to a Wikipedia article on the .45 ACP, and shows a photo of the cartridge.
19 yrs old
50 cents to 1 USD
The FMJ Ducktown Model D .45 Derringer is manufactured by FMJ Firearms, a company known for producing compact and reliable firearms. The Derringer design itself has a historical legacy, but FMJ Firearms has modernized it to cater to contemporary shooting needs. This model is particularly noted for its lightweight design and ease of concealment.
100-300
http://www.gunsamerica.com/guns/976640103.htm
25-100 usd
100-150 USD
i would like to know what a Dan Wesson model 1911-a 45 cal pistle with ser# 00062 is worth
The Model 17 is chambered for the .22 LR. The Model 1917 was chambered in 45 ACP
government model 70 45 cal
1948
When made.