A plate on the wooden case lid gives serial number 35360; the interior marked "U S. NAVY ...921"; a note within defines a stadimeter as "...a modified form of sextant used for finding the distance of an object from its known height."

6-1/2 x 12-1/2 x 6-3/4 in.

Private Collection, High Point, North Carolina

Included is a 1977 letter from Keuffel & Esser to the instrument's owner.

Unknown if operable; good condition overall.