35-100 USD
model 12 = gun manufacturer model 16ga = 16 gauge shotgun imp cyl = improved cylinder
your Winchester model 1912 shotgun was made in 1914.
I have no records of a Browning 16ga shotgun having a A prefix to the serial number.Please check and list the model number(or name model) of your shotgun in your next post.
Mid 1950's
If you have a 16ga model auto-5 shotgun? it was made in 1952.
The term "16ga Ranger 105" refers to a specific model of shotgun, with "16ga" indicating that it is a 16-gauge shotgun, which is a measurement of the bore size. The "Ranger" brand is often associated with firearms produced by the J.C. Higgins line of firearms sold by Sears, while "105" typically denotes the model number. This shotgun is likely designed for hunting or sport shooting, featuring a smoothbore barrel suitable for firing shotshells.
If you don't have an owner's manual, take it to a gun smith.
I can say that the savage model 775 shotgun was made between the years 1950-1965.I am afraid that is the best That I can do.
A Winchester model 1897 shotgun chambered in 16ga,and in fair(50%) condition will bring 375 dollars.if it would rate 60% then it will be 450 dollars.
have good 16ga no clip shoots good model 228
High Standard http://www.histandard.info/PDF/Sears%20Shotguns.pdf
Contact Browning. They offer letters for @ 40 USD