This harpoon gun was manufactured The heavy barrel has a nickel silver bead front sight and is signed "WESTLEY RICHARDS & Co. Ld. LONDON W." on the flat at the breech end and has Birmingham proof marks from the early 20th century, including the nominal bore size 20. There is also an electopencilled "2/XII/204" marking on the top flat, and a harpoon gun logo is marked on the bottom at the breech end. It is mounted with a figured walnut stock with an orange rubber recoil pad.