Keywords: F4B-4 VF-9M-VMF-111 NAN10-81.jpg A U S Marine Corps Boeing F4B-4 fighter BuNo 3238 of Marine fighter squadron VF-9M in the early 1930s The squadron was later redesignated VMF-111 U S Navy Naval Aviation News October 1981 http //www history navy mil/nan/backissues/1980s/1981/Oct81 pdf early 1930s USN PD-USGov-Military-Navy Boeing F4B |