United States. Army — Insignia — Audiobooks
The Good Old Songs We Used to Sing, '61 to '65
by Osborn H. (Osborn Hamiline) Oldroyd
Army and Navy Uniforms and Insignia How to Know Rank, Corps and Service in the Military and Naval Forces of the United States and Foreign Countries
by Dion Williams
American Military Insignia, 1800-1851
by (James Duncan) J. Duncan Campbell