Stamp on a Turkish muzzle loader

[archer]

Thanks Rand, I was pondering your question, when I spotted a proof mark peeping out almost hidden by the stock. I would say age mid 1800s. Then the lights came on briefly. All the British guns I've owned or handled are dripping with proof marks on all major parts. I have to assume German and other European guns would be the same. Thanks for the links, I'll look into them.

Steve