Overall: 22 1/2 x 15 x 2 1/2 in. ( 57.2 x 38.1 x 6.4 cm )
stamped: on side of caliper: "DAVID R. GRIFFITH/Philadelphia" stamped: on obverse of other caliper: "David R. Griffith"
Steel calipers with two curved, tapered jaws connected to two steel bolts and brass wingnuts.
According to accession records, David R. Griffith was a master mechanic for the navy who made his own tools during the Civil War.
Gift of Dr. Frederick Griffith
Due to ongoing research, information about this object is subject to change.