The Arabian Mare and Stallion, the Morgan Mare and Stallion, and the Thoroughbred Mare were cast from 2 different molds, here referred to as mold 1 and 2
The most noticable difference between the stamps on the two TB Mares is the 5 being quite large on mold 1, and fairly small on mold 2
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This one is certain to come from the Sears 1989 set, since I took him out of the box personally.
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