SORRY FOR THIS QUESTION BUT I CANT FIND A ANSWER ANYWHERE.
I HAVE SOME OLD PLASTIC AUTOS THAT ARE ACCESSORIES TO LAYOUTS, I BELIEVE THEY CAME FROM THE EARLY TO MID 60’S. I THINK THEY ARE MADE BY MARKLIN BUT THE ONLY MARKS ON THE BOTTOM IS A M WITH A UPSIDE DOWN M ON TOP OF IT, THE ARE PLASTIS, SOME DIFFERENT COLORS, BUT ALL HAVE GRAY PLASTIC WHEELS, IS THERE ANY WAY ANYONE CAN HELP ME FIGURE OUT WHAT THESE ARE, EXAMPLE 1 IS A 1963 MERCEDES 190SL GRAY WITH RED TOP AND BLACK SEATS WITH DARK GRAY WHEELS 1 7/8 INCHES LONG BY 3/4 WIDE 5/8 TALL.CA I HAVE HAD THESE FOR MANY MANY YEARS, THEY SET ON A DISPLAY WITH MY OTHE VINTAGE CARS. ANY HELP…THANKS