This object is on display in the Time and Navigation exhibition at the Museum in Washington, DC.
Transferred from the United States Navy, Naval Supply Center
Country of Origin: United States of America
6 1/2in. x 7 3/4in. x 1 3/4in.
Physical Description:7in. x 6-1/4in.; frame with gears, control knob, date window.
Inventory number: A19650121000