1970s remington shotgun barrels

[Justin125]

I have a few bare barrels that my dad gave me. 1) 12g. 1) 20g. 1) ribbed 2og and a 12g bolt action marlin "goose gun" appears to be almost complete minus the stock.

They are still in the boxes (minus the goose gun) with post mark stamps from 1972. Im trying to figure out where I can find some info on these. Like value, actual production dates ...etc.
Any info on how to decipher the markings on them would be appreciated

 

[bassicpackrat]

If you contact Remington with the markings on them they can tell you what year model they are from, that's how I found out the month and year on 2 of mine