Pasaules Militārā Enciklopēdija
> ASV
> Head Wear Insignia
> Army Head Wear Insignia
> Berets Army Insignias
> Field artillery
> US-USAHWIFA-00021
20th FA regiment
Gadījuma:
Пограничная застава "Токари" ОПС Республики Беларусь
200 Military Police Command Patch. US Army
210 Fires Brigade Patch. US Army