Neat old insulator right from my collection, I've had this one for many years. To me it's a yellow green tint, close to clear, but not, I can send more photos if needed. For the specialist, mold B on the rear. The base has a couple of pieces of glass that were stuck to it from another insulator at the factory, pretty cool, really haven't seen this before. The insulator is in great shape, I only see 3 tiny pin pricks. $75 plus shipping.