Coin

Corner. Wedge. Key securing rail to their quoin. Chock. Breech-closing wedge. Letter, figure or trade mark punch. Knife-edge piece on trunnion that is spring supported. Coin de rattrap age. Wedge used to key up gun platform after set-back.—Coin de retour en batterie (coin de recul). Long run-up to wedges under gun wheels (siege carriages)—Coin d’arrét. Stop limiting movement.—Coin a poignée. Wedge into handle.—Coin 4 fendre. Splitting wedge. —Coin prism at i que. Krupp wedge breech block.—Coin de mire. Fine elevation quoin (obsolete). [p.126]