1949-1968
Remington
1964
Browning, Remington
They were all made from 1949-1958 so they are date code stamped on the barrel, see related links.
Several, the auto5, B2000, B80 and others
It is a St. Louis Browning made by Remington for Browning. It was made around 1940. It's value is probably around $250.00 without seeing it. The B means it is a 12 gage. A was 16 gage and C is 20 gage.
I think your referring to a model 11, made from 1905-1947.
Impossible to answer without a detailed description and the serial number.
Hi, i have a remnigton 12 gauge semi automatic mohawk 48 and i think they were only made for 4 years in the early 60s or early 70s. As far as price i have heard of people buying them right around 200 dollars. Im really not to sure about the 20 gauge you might want to take it to gun appraiser.
Made from 58-63. 100-300 USD
Please explain what you mean specifically by "Pattern"
Have one that was made in 1943