Produced without sights, with the barrels set in an over and under arrangement with one hammer, flash pan and a sliding safety which locks both. The flash pan has a rotating tap in the bottom, which cuts off access to the lower barrel vent when turned counter-clockwise. Engraved frame, with crossed scepter proofs on the underside, "UNDERHILL/ & SON" on the left, an array of arms and flags on either side, sliding safety, engraved trigger guard and a bag shaped grip.