Pasaules Militārā Enciklopēdija
> ASV
> Head Wear Insignia
> Army Head Wear Insignia
> Berets Army Insignias
> Airborne
> US-BIA-00092
309th engineer battalion of 84th Airborne division( obsolute)
Gadījuma:
National Guard patche, 2 variant /Latvian National Armed Forces/
41st Tank battalion
177 Armored Brigade Patch. US Army