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.