jwebster86, welcome to the forum. You would be better served if you started a new thread and asked your question. This thread is years old and has so many responses that many folks will not bother to open it and read your question on a fourth page. In a new thread your question will be first.
I own a k-22 that is about 5000 serial numbers lower than yours and mine shipped in June of 1950 whereas I shipped in September of 1950.
I would therefore guesstimate your gun shipping in maybe August or September.