Going through my cars in the last couple of days I came up with these three vintage rail dragsters I don't know the brands of. The green anodized aluminum one has the rear axle just floating loosely the the axle tube holder. Not sure what's supposed to go in there to hold it all together, whether it be bronze type axle bearing holders, or ball bearings, or what. Also the guide flag is missing, so if a particular one is supposed to go with this one, please share what you know.
The second one is a chrome plated heavy steel bodied one:
The last one is a magnesium rail chassis with an unusual to me twisted style motor. Armature has both green and copper colored windings. This one has ball bearings for all the wheels, and beveled brass gears giving a very smooth gear train.