Location: Philadelphia, Pennsylvania

Henry Deringer Sr. and his son, Henry Jr., were well established in Philadelphia by the close of the War of 1812, having made both sporting and military rifles at that place since the turn of the century. Henry Jr. continued in the gun trade until the outbreak of the American Civil War, primarily producing flintlock and percussion military rifles. At least 2,500 "Northwest guns" and 1,200 rifles for the Indian trade, a few percussion martial pistols, but most importantly the percussion pocket pistols that became so popular they took on his misspelled name as a generic term, the "derringers".