There were two Andrew Gumpfs (Gompf) active in Lancaster. The first was the father of the second and was active circa 1820-1850. His son Andrew Jackson Gumpf was active starting in the late 1850s and may have even still built some rifles shortly before he died in 1907. The Gumpf family was active in the Lancaster region from late 18th century until the end of the 19th century. Given the 1860s-1870s style "JAS GOLCHER" lock, this rifle was built by the younger Gumpf. It has traditional blade and notch sights, "A GOMPF/LANCASTER" on the top of the barrel, line engraving patterns throughout, double set triggers, scroll and bird patterns on the lock, attractive engraving on the patch box, and a smooth walnut stock with intersecting checkering at the wrist.

Good. The barrel is secured by a wood screw leaving the original barrel screw slot open in the trigger plate. The barrel has a mottled mixture of silver-gray and brown patina. The lock has slightly darker gray patina. The brass has an aged patina, and the lower patch box side plate has some bright filing at the tail end. The refinished stock is very good with distinct recut checkering, scattered minor marks, and a small, but stable, break at the toe. Mechanically fine.