A Rare Springfield Trapdoor

The desire to collect one of each make of model of US military arms is one which results in increasing difficulties.  As the collections grows the more common items are the first found.  Those are the least expensive.  The arms get progressively harder to find and more expensive.

http://www.gunbroker.com/Auction/ViewItem.aspx?Item=154632684

The rare 1880 triangular bayonet trapdoor - my latest purchase.