Do you see any of the airplane's windows in the picture? DC-4s have round windows. DC-6s have square windows.
OK removing photo (old sepia) from the frame has revealed some more detail.
Interestingly, 1 window, square.
Thanks Marker, makes a bit more sense I guess given some of the sectors/endurance etc.
Still going to be a long shot finding any PAX or flight plan details from that far back.
Cheerz BAz
