Patterson, Richard Sharpe; Dougall, Richardson (1978) [1976 i.e. 1978]. The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. p. 467. LCCN78602518. OCLC4268298.
The Eagle and the Shield , p. 422. "The envelopes bearing the seals were presumably discarded upon their delivery to the Senate or the House of Representatives."
Patterson, Richard Sharpe; Dougall, Richardson (1978) [1976 i.e. 1978]. The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. p. 467. LCCN78602518. OCLC4268298.
Patterson, Richard Sharpe; Dougall, Richardson (1978) [1976 i.e. 1978]. The Eagle and the Shield: A History of the Great Seal of the United States. Department and Foreign Service series ; 161 Department of State publication ; 8900. Washington : Office of the Historian, Bureau of Public Affairs, Dept. of State : for sale by the Supt. of Docs., U.S. Govt. Print. Off. p. 467. LCCN78602518. OCLC4268298.