arsenal 26? mine was built in 1963
this is the absolute best site i have found for S/N research
http://chinesesks.weebly.com/dating-the-chinese-sks.html
Arsenal 636. From what I’ve read 636 is one of the preferred arsenals ( after 26 ). And that is the exact same website i used to date mine.Still shaking my head over the complete lack of import marks. It’s essentially the same as it came out of the factory. Weird.
CC