I'm a bit late on this, but I believe Dwights thought of the 1920 being a property mark and not a production date is correct. If it was a 1920 production, it would have dove proofs and/or WaA4 acceptance marks on the right side of the receiver. I cannot see any proofs in the photos.
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I Still Need DWM side plate #49... if anyone runs across a nice one.
What ~Rudyard Kipling~ said...
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