This object is not on display at the National Air and Space Museum, it is either on loan or in storage.
Country of Origin: United States of America
3-D Test: 12.7 x 25.4 x 17.1cm (5 x 10 x 6 3/4 in.)
Physical Description:5inx6-3/4in.face, 10in.depth, vacuum operated, s#ac-40-59
Inventory number: A19601152000