That is an interesting stamp. Sort of a Crown at the top - British? Maybe South African. Which could mean lots of things. I can't find anything like that here: https://www.uzitalk.com/reference/pages/barrels.htm
I'm sure someone will chime in on this with some good info. Can you get a better closeup of that? I'm trying to figure out what's beneath the Crown.
I dug this up, which I'm having fun perusing now: https://www.hallowellco.com/british_proof marks - syntax by date.htm
Is that the only stamp on it?But do you think we could say that it is not Israeli made?
really? that is good.Crown over an N? Netherlands proof mark on an Israeli made barrel