
Front-quartering view of a P-39, tail number 17246, 8x10", b&w. Text above aircraft reads: "37mm, M4, automatic cannon. Showing P-39 installation firing through hub of propeller". Official photo number 90465. Very good, 3-hole punched upper margin.
Front-quartering view of a P-39, tail number 17246, 8x10", b&w. Text above aircraft reads: "37mm, M4, automatic cannon. Showing P-39 installation firing through hub of propeller". Official photo number 90465. Very good, 3-hole punched upper margin.