So a friend of mine just sent me a photo taken at Vancouver airport in 1944, it's a splendid high res image, but (as usual) something in the background caught my eye. I've cropped the photo to focus in the portion of interest, as the full-size file (which shows the entirety of the CPAL airplane in the foreground) is huge.
Can anyone ID what that is? It looks like it's got radials and a turret? Overall light colour - yellow, perhaps? Or white?