A Heavy 20-Bore Matchlock Carbine
Signed Omi Kunitomo... Katsumasa, Edo Period
The barrel with top flat mounted with raised fore-sight and pierced block-shaped back-sight, tulip-shaped muzzle, inlaid in silver at the breech with a Omodaka mon, brass back-action lock with brass serpentine and pan-cover, cherrywood full stock with brass mounts including butt-cap, and pierced brass trigger (ramrod missing)
69.5 cm. barrel