3502592 Gunners rule (brass) (see also 3502591) by English School, (18th century); length: 61 cm; Private Collection; (add.info.: A good 18th-Century English brass gunner\'s rule signed Gilbert London, further engraved with owner\'s name (illegible), with scales on one side for Guns and Shot and various further scales on each side); Photo 穢 Christie\'s Images.