NACA Aircraft Circular - Bernard 120 Seaplane (Schneider Cup) - 1931


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Leglise, Piere. NACA Circular 139, The Bernard 120 Seaplane (French), A 1400 hp Single Seat Monoplane Racer. Washinton DC, 1930. 8pp, three full-page illus, 8x10", wrps on manila paper, green paper cover, typed (mimeo). About fair-good, cover loose and a few small chips on spine.