Country of Origin: United States of America
3-D Test: 41.9 x 6.7 x 30.5cm (16 1/2 x 2 5/8 x 12 in.)
Steel, Brass, Felt, Copper, Natural Fabric, Cardboard, Plastic
This is a flow regulator for liquid oxygen, also called a lox [flow] indicator, and was used by Robert H. Goddard for some of his earliest liquid fuel rocket experiments, about 1923-1924.
Mrs. Robert H. Goddard donated this object to the Smithsonian Institution in 1959 as part of a large collection of artifacts from her husband.
Gift of Mrs. Robert H. Goddard