Built like a Pepper Box but barrels are lined in place to fire individually by hand. There is a release that allows the barrels to pivot into position.  Barrels are 6 inch smooth bore. Release is behind the hammer.  Percussion fired. Wood handle. Metal patina. C-8 in white paint on bottom probably a museum number.  Action works fine.  Only 1 of the 4 nipples present.  Crack on left side of stock. Cannot find any marks or proofs anywhere.   These were popular with Navy as boarding pistols and to take out rigging.  Antqiue so no paper work needed.  Very seldom seen in any condition and this one is quite nice and quite a conversation piece.