Collier 1818 Patent revolving carbine
Designed by Elisha H. Collier in Boston, manufactured c.1818-1827.
.50 caliber, 5-shot self-priming cylinder, flintlock machanism, removable stock.
A carbine version of one of the first -relatively- widely manufactured revolver. Collier patent revolvers are not self-indexing, like the single-action designs of Samuel Colt, but they are self-priming. This system works with powder being released from a hollow frizzen everytime it is flipped down onto the pan, leaving only the hammer to be released for the gun to fire.
Note the fancy frizzen.
Sauce : ssaa.org.au
You will have to pray to
Saint Arquebus to get more than three discharges!