Can you show us images of the entire rifle and share the serial number for a data base? They were made into the war time and the later production had the suffix k. There have been many questions and answers on this sub-forum about the semi-auto Models 1 and 2. If you use the search engine with the words semi-auto or othe related terms or perhaps use my name, you will find posts with quite a bit of info. The only admonition I offer is do not use high-power .22 ammo in it. The production back then was not designed for it.
Use subsonic if you must shoot. I was shooting my Model 1 and didnt take care with the ammo. The bolt handle broke off. Just not worth it. The serial number should be on the left side of the trigger guard assembly, behind the magazine.
Very nice video. Excellent production values. As to the history/date of the rifle, most of the Walther factory documentation was either destroyed or hauled off by the Russians after the US Army captured the factory and made off with a good deal of the production. There is no record of Walther factory material in US archives. So most information comes from circumstantial info. I started a conversation with a Portuguese researcher who advised me of a cache of Walther Mod 2 rifles in the early 41000 range purchased by a shooting club in Portugal in the early 1930s. That is the only info I can provide as to the dating of your rifle. Best wishes.
You are welcome. As you noted in your video, yours has a much heavier barre like the bolt action Meisterschaft series and the block front sight base is totally different from the standard sloped front sight base. Does yours still have the sling swivels front and rear? That is a striking grain pattern in the stock. Also, the receiver was drilled for different sights?