Depends on what they are. Could be choke markings, proof mark, etc..
check the date code stamped on the barrel. Remington Society of America, Manufactured Date link has the details.
2 3/4, but recommend looking on the left side of the barrel. It is stamped there on the side.
No
No
Go to Browning.com and look under customer service.
Browning did not offer one, but you may find an aftermarket Hastings barrel (www.hastingsbarrels.com) that will do the trick.
NO! The 1187 barrel was for remington shotguns,the auto-5 shotgun is a browning shotgun.
It will be marked on the barrel or receiver regarding where it was made.
This is a 16ga American made Browning made in 1946. auto5man
If you are asking about a Browning Auto-5 shotgun,then it was made in the year 1923,with the serial number that you have provided.
200-500 USD
Should be marked on the barrel