UNDERHAMMER PISTOL
.31 perc. cal., single shot pistol, 8 1/2 in. octagon barrel, marked "H.PRATT'S/PATENT" top of frame, combination trigger guard/mainspring, walnut rounded bird's head grip. RF=unknown.
.31 perc. cal., single shot pistol, 8 1/2 in. octagon barrel, marked "H.PRATT'S/PATENT" top of frame, combination trigger guard/mainspring, walnut rounded bird's head grip. RF=unknown.