0f3295_c94d5a1d5d8f4aca9ac07d4f6049691e Published on December 6, 2016 in 8 December 1945Full resolution (391 × 186) ← Previous Next → Bell Model 47, serial number 1, at Buffalo, New York, December 1946. (Bell Helicopter via “Floyd W. Carlson, Helicopter Pioneer”)