[Herb]

Here is what Costanzo says about it on page 192, item #118: United States ordnance flaming bomb proof used only on 275 spare parts ordered in addition to 1,000 1900 Test and Acceptance models. This proof is found in the 6,100-7,100 serial number range. This proof was issued by the Springfield Armory to the U.S. cavalry for field trials and sold to Frances Bannerman in 1904. Locations noted: left side of barrel, takedown lever, side plate, left and right breech block, left rear axle, inside grips, grip screws, trigger, top sight, reciever lug, back of magazine strap, and magazine bottom.