Surviving Mustangs No 4 (44-74978) and No 1 (44-73193) in the SALA maintenance hangar in San Jose in 1964, before leaving Costa Rica. By this time the shield from the Costa Rican coat of arms had been added to the national insignia.

F-51D Mustang No 4 during the 1955 emergency. The original Costa Rican national insignia was essentially the USAF’s “stars and bars” minus the star element!