Brewster Buffalo F2A-3 in revetment at MCAS Ewa circa 1942. Note the number 12 on the leading edge of the wing.

Brewster Buffalo F2A-3 in revetment at MCAS Ewa circa 1942. Note the number 12 on the leading edge of the wing. Number 12 would correspond to Marine Fighting Squadron 221 (VMF-221), aircraft number MF-12, BuNo 01542.

Brewster Buffalo F2A-3 in revetment at MCAS Ewa circa 1942. Note the number 12 on the leading edge of the wing. Number 12 would correspond to Marine Fighting Squadron 221 (VMF-221), aircraft number MF-12, BuNo 01542.