John Ed & Texwing

I am wondering if all 3 of us need to get a complete set of pictures of our guns to Bruce Canfield. It would look like we have 3 so far that are stamped differently than any Model 12's know previously.

How are the 20,000 World War One Model 12 Trench Guns Stamped, Metal as well as Wood?

I would presume that World War Two Model 97's are all stamped with the U.S. on the Left Receiver and the Open Flame Bomb on the top of the barrel, and the WB Inspectors Cartouche with Cross Cannon Ordinance Wheel on the stock, or did this depend if they were Riot or Trench Guns? Are Model 97's stamped more than one way?