Shows both types of known mold variants of the California emb'd CD 102. The PT variant on left is quite rare, probably by 100 to 1, compared to the RT on right. These are only found in "California Blue" or with slightly more aqua cast. I picked both styles in the Yakima Valley of Washington in the 1970's. There was a 2 bracket farmer line near Moscow, Idaho that ran about 1 mile off the road. One pin was RT Cals, the other RT C.G.I.Co.'s in green. Never once did they change pin positions from one end to the other!