If this old relic could talk, it would be fascinating.  It is an original flint French Model 1777 Pistol manufactured at the Charleville Arsenal in 1780.  The barrel tang is marked 1777, which is the model number.  The frame and barrel are marked 80, which is the date of manufacture, 1780.  It is in original flint but missing the tumbler and the hammer.  The mainspring is even still inside.  Now remember the Revolutionary War is still going on in 1780 and the French were our allies.  They supplied both arms and troops to the Continental Army.  What's left of the gun is in a natural state and is original.  If you would like to tinker it back, I believe it would be worthwhile.  SOLD!