NARA B26619..Convair 29-306..4 April 52
NHARA B26620..Convair 29-305..4 April 52 Public domain photograph of aircraft engine, free to use, no copyright restrictions image - Picryl description
NARA B26611..Convair 29-608..12 May 52 Public domain photograph of jet aircraft, free to use, no copyright restrictions image - Picryl description