3" X 3 1/8" (76mm X 80mm)

(skirt embossed) H.K. PORTER CO, INC. 106932

Picture courtesy Darryl Wagner

3" X 3 1/8" (76mm X 80mm)

(skirt embossed) H.K. PORTER CO, INC. 106932

Picture courtesy Dennis Alexander Wolf

3" X 3" (76mm X 76mm)

(skirt embossed) H.K. PORTER CO, INC. 106932

{note 1/2" pin hole}

Picture courtesy Bob Berry