Storage: 15.88 x 15.88 x 10.16cm (6 1/4in. x 6 1/4in. x 4in.)
Type:
EQUIPMENT-Test
Country of Origin:
United States of America
Date:
1887-1903
Physical Description:
Single, solid object painted black. Two 1/4" pegs on the bottom indicate that it plugs into another object. This may have something to do with experimental use of developing cylinder or piston heads.
Credit Line:
Transferred from the Smithsonian Institution to the United States National Museum.