Hello all
The black one is Mini Scale 1937-40 ...diecast 17/64ths ,.which is the proper scale for O gauge track. (1 1/4")
Other car ? .,there are many many cast hoppers ...nwed a spotters guide to detect each and every one of them ,,
Guess Scale Craft as they offered 3 or 4 ..and you have a better than average chance and being correct .
Cheers Carey