5051. Virus. Public Health Service decision no. 1 under sec. 63 of Regulations for sale of viruses, serums, toxins, and analogous products [in District of Columbia and in interstate traffic, approved Feb. 12, 1919. regarding dating of special products in accordance with tests made therein]. Bookmark Corporate/Agency Authors: Treasury Department Publisher: Treasury Department Date: [1919.]
5052. War-savings stamps and certificates. Agencies for distribution and sale of warsavings certificates and Treasury savings certificates, series of 1920. Bookmark Corporate/Agency Authors: Treasury Department Publisher: Treasury Department Date: [1919.]