Model T-21 E2 Helmet Prototype
Object type: Helmet prototype
Department: Arms and Armor
Culture: American, New York
Artist: Leonard Heinrich|The Metropolitan Museum of Art, Armor Workshop
Artist bio: American (born Germany) Munich 1900–1966 Clarksville, New Jersey| 
Artist role: Armorer|Armorer
Artist nationality: German|American
Date: 1945
Medium: Aluminum
Dimensions: H. 7 in. (17.8 cm); W. 9 7/16 in. (24 cm); D. 10 3/4 in. (27.3 cm); Wt. 1 lb. 8.4 oz. (691.7 g)
Classification: Helmets
Geography:  New York  New York   
Credit line: The Metropolitan Museum of Art, 1945; Museum Accession, 2016
Accession year: 2016