Chris Brame wrote:
The last seven photos look like the stepped-nose C-46E or XC-46B.
The Inspector wrote:
Mark, How 'bout a shot or two of the prewar CW-20 Airliner, especially the twin tailed version?
Here's a wartime shot, from the Imperial War Museum, © IWM (CM 6535):

C-46 s/n 101 was the prototype CW 20 airliner and as originally test flown by Eddie Allen, had twin small vertical fins and twice as many windows as the COMMANDO.(also different, double legged main gear). It went to the USAAF as 4121041 and was the one and only C-55, after evaluation it went back to CURTISS under it's civil registration of NX 19436 It was sold to British Overseas Airways Corp. as G-AGDI and named St. Louis. it was broken up 10/29/43 Good find Chris!