[rockpaperscissor]

Forrest, I checked out the M3 photo from your link. Even though it's a B&W photo, I'm pretty sure that the field in the turret roundel is red (in unfiltered, unbalanced B&W photography, the color red appears extremely dark). What's interesting to me about that picture is that the star insignia on the rear of the turret doesn't match the side roundel - no surrounding field at all - I can just make out that it has a colored center dot, though - probably blue. The Sherman in the fifth picture down also sports a white star (no field) on the turret side, and I think it too has a blue center dot which shows up faintly in the photo with about the same B&W tone as the tank itself.

"Pink Panzer", hahahaha.