A fine early 19th-Century brass pair of gunner's callipers, signed Gilkerson Tower Hill LONDON , the joint with scales for Inches , 0° - 180° (twice), and Shot , the steel-tipped, shaped arms with scales on the upper side for Quantity of Powder for filling the Chambers of Brass Mortars & Howitzers on land and sea, Guns and Inches , the lower side with scales for Proof and Service for Brass Guns and Iron Guns , and Lin -- 12in. (30.6cm.) long extended See Illustration
A fine early 19th-Century brass pair of gunner's callipers, signed Gilkerson Tower Hill LONDON , the joint with scales for Inches , 0° - 180° (twice), and Shot , the steel-tipped, shaped arms with scales on the upper side for Quantity of Powder for filling the Chambers of Brass Mortars & Howitzers on land and sea, Guns and Inches , the lower side with scales for Proof and Service for Brass Guns and Iron Guns , and Lin -- 12in. (30.6cm.) long extended See Illustration
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