Tanegashima arquebuses, named after the island on which they were introduced by shipwrecked Portuguese explorers in the mid-16th century, were used into the late 19th century, long after matchlock firearms had been replaced by flintlock and percussion arms by Europeans and other western countries. The barrel has two raised Tokugawa mons, a traditional grooved block rear sight, an engraved and inlaid design with two arrows, and a series of untranslated Japanese markings. The Tokugawa shogunate was the final Japanese feudal military government from 1600-1868.