Go to Browning's site, click on Support then date your firearm.
It must be examined by a gunsmith due to the different types of 12 gauge ammunition made in the last 100 yrs or so.
The Citori is made in Japan.
Need the guage to determine age
Impossible to answer without a detalied description of all features and markings.
100-1000 USD or more depending on specifics
Shotgun made by Browning.
Check under and on the inside of the forearm, top of the action, receiver, and barrel.
You will have to call Browning.
Yes, Browning has made them.
If your Browning auto-5 shotgun is a 12 gauge model then it was made by FN of Belguim for Browning in 1907.If you have a 16 gauge model,it was made in 1921.
You have an Amwerican Browning made by Remington for Browning during WWII. It was made in 1947.