Your AK & S is 207 later than mine on my 1944 M47C & AK & S 16684 judging from the wrist it may have been sanded a little but who knows its a very nice weapon and worth hanging on to the CES kits and transport cases are hard to come by I've given up as it would cost to much and years of trolling the web for genuine and then its still a put together.
I have purchased a repro scope tin and a correct 3 draw telescope & leather carrying pouch but stopped as WWII CES kit bits do not come up often and empty your wallet quicker than a hooker on Boogie Street.