United States Government Master Specification for Denim, Brown (shrunk).United States. Bureau of Standards.1927
United States Government Master Specification for Indigo Blue DenimUnited States. National Bureau of Standards.1925
United States Government Master Specification for Denim, Indigo BlueUnited States. Bureau of Standards.1926
United States Government Master Specification for Brown Denim (shrunk). Federal Specifications Board Specification No. 254a.United States. Bureau of Standards.1925