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