I have a Hopkins & Allen 3rd model DA 32 cal centerfire pistol. The DA don't work. Its missing 3 parts.....a pin, linkage and a folded spring steel spring. None of the parts places have anything for this pistol. This one was made Jan 27, 1885, even though the patent date on the barrel is Mar 28 1871. The 3rd model began on Jan 6, 1880. Sure would like to get this one shootin again. Has Mother of Pearl grips and has a period holster with it as well.