I inherited these two rifles when my grandfather passed away. He was captain in the infantry during WW2 and although he has told me about the war, he has never mentioned anything about these rifles. I have done some research on the rifles but I don’t know much about them. I have taken the bnz 45 apart and most of the parts seem to match except for two that say byf, I assume because it’s such a late model 98. I would like to clean it up and see if I can fire it for the first time in 70+ years but I thought I’d check here first. Any suggestion would be greatly appreciated. I will include pictures.