1930’s cigarette card I picked up showing the BA Lockheed 10 Electra G-AEPN, but with the reg and lining in red with black outline – inaccurate, or were only the Super Electras painted with the blue reg and trim?

May I suggest that the letters are dark blue with a red outline. I am puzzled as to why they should have a red outline. The card is a hand painted copy of Flight photo 14018S by the way. (see page 383 AJ.Jackson Brit Civ Ac).

John