Robuta

https://www.christies.com/lot/lot-1545633 A PAIR OF 20-BORE SINGLE-TRIGGER SIDELOCK EJECTOR GUNS BY BOSS, NO. 7747 (1) AND 7772 (2) |... A PAIR OF 20-BORE SINGLE-TRIGGER SIDELOCK EJECTOR GUNS BY BOSS, NO. 7747 (1) AND 7772 (2)