Details
A military pattern oxidised-brass combined compass/clinometer,
with prismatic sight, by Lawrence & Mayo; a compass by J.H. Steward, with folding sights; and a prismatic compass with black-enamelled brass body -- 4in. (10.2cm.) dia. (3)
with prismatic sight, by Lawrence & Mayo; a compass by J.H. Steward, with folding sights; and a prismatic compass with black-enamelled brass body -- 4in. (10.2cm.) dia. (3)