Hey RM posting this with you in mind. So, I was looking at the 'dating the Chinese SKS' page concerning one of my SKSs. It is a [0138] Arsenal but with a 74 prefix to the SN. On the page it only shows diamond arsenals for 74 so I thought I would throw up a pic for reference. You may already have info to this effect, but just in case you don't...It's all matching short collar spiker with sling swivel on the side.
Besides, I can't let Matchka have all the fun with all his oddball arsenal stamps chuckles1 chuckles1
(https://i.ibb.co/L5kHCLK/AF92-C191-F5-DB-4-CAA-8-EA4-B66-F1-A45-E3-C4-1-201-a.jpg) (https://ibb.co/sHmzF07)