Its an American Era rare prototype covering the approximate years 1960 thru 2003. A long production run of small volumn. Very valuable because there are many variations and proof marks. I think that maybe this could be thought for a new book by Jan Stills. Jan could make millions on the book.
Steve, I believe that since your artillery is a 1930's Erfurt version, it must be untra rare. Maybe out of Erfurt, Texas. The fact that none of the serial numbers match means that someone went through great pains and artistery to make sure that no number matches. Some research is necessary. Just not by me.
Big Norm
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