Victor 3 N help

Thanks for any help on these. I'm helping an old friend clean out his barn and sell a few of his traps. He came across some old Victor 3 N's and we were trying to find out more information on them before he prices them. The folks on Trapper talk suggested we ask here about the possible value, and more information on the casting marks on the jaws. Here are a few pictures, some have that type of stake, a few have a Large lap link on the end. I believe a lot are missing some of the original chain, as they end after one length and then a large cast swivel, while some have two sections of chain. About half a dozen were never used, and he had the original box they came in but it was fairly trashed. Thank you for any help , maybe an idea of the year they were produced ? Thank you, Albert

is there any stamping on the bottom of the base

I believe only on the jaws Mark.

The # is a casting # from the foundry were the jaws were cast. It is like a part #.