1/2" x 1" Red Rubber Flipper Ring

1/2" x 1" Red Rubber Flipper Ring

Reference:

Bally R-533-3, 23-6553-4
Gottlieb A-13149*  *A-13149 is a Red Beaded 3/8" x 1" Ring
Early Stern 7A-142
Williams 23-6553-4
Stern 545-5207-22