Fordite is from pre 1972 from Ford motor company. It was sliced off the walls and pipes of the paint booths then tossed into a dump. Thank goodness some of it was taken home & then jewelers discovered it a few years ago. It is cut into shapes from large blobs of paint & set into jewelry, we use sterling silver. Never 2 pieces of Fordite are the same with each color a different car. This Fordite is an oval with red, blue, white gray and black in it. Size is 6 1/4 with a solid back on the rear of the Fordite, not hollow. Size of the cab is about 3/4″ x 1/2″.