This object is on display in the Time and Navigation exhibition at the National Mall building.
Pioneer Instrument Co.
Country of Origin: United States of America
3-D: 47 x 14 x 27.9cm (18 1/2 x 5 1/2 x 11 in.)
Storage: 16.67 x 50.8 x 13.97cm (6 9/16in. x 1ft 8in. x 5 1/2in.)
Materials: Steel, aluminum, natural rubber Box: wood, varnish, brass, adhesive
Physical Description:Metal sight; in 51cm x 9cm x 17cm wood box; experimental.
Inventory number: A19570247000