Copper alloy, 4.73 grams; 26.46 mm. 16th century AD. Class C, type 3. Cast, sheeting and wire; three piece; convex; engraved; niello; semi-circular section. The front-plate has a rectangular panel of cross-hatching with two transverse bands near the attachment-end and one at the hook end, all inlaid with niello. The sheeting back-plate, which is wider than the obverse-plate, thereby forming laterally projecting long edges, has a square aperture. A seperate wire hook is inserted through the base and then soldered between the two plates. Ref: Hooked-Clasps & Eyes by Brian Read; page 54, no 168. Very fine condition.