Ebony, brass, glass, cardboard, paper
box: 1 x 2 5/8 x 2 5/8 in. ( 2.5 x 6.7 x 6.7 cm )
Square pocket sundial with compass ("a") in original cardboard box ("b"); ebony case with brass plate attached with screws to top; plate with incised sundial markings, folding gnomon, and circular window at center through which compass is visible; with four tiny brass ball feet on underside of base.
Gift of Herman Wolff in memory of Mrs. Helen A. Collingwood
Due to ongoing research, information about this object is subject to change.