7004-131 Lot of three calipers. Two are unsigned and user made, one wrought iron with brass hinge, 25-1/2" long, the other wing type, 13" long with hand wrought locking wingnut. The third may be manufactured and is marked "H.D. Boss", wing type with locking spring and nut, 10" long. Fine 90 - 150 (GRG11,13)