Hard to say on the color, I've asked about 8 collectors at Springfield, half of which say Sapphire blue and the other half said dark sky blue. The insulator is definitely not the standard blue or aqua. I have two blue's in my collection and this one stands out a lot! The insulator has chipping to the right of the embossing with a crack. There is a crack on the back base that goes straight up then right a little. The crack goes up about 80% the way to the wire groove. This crack has no impact point, and I'm thinking it could be a cooling crack. I added a second picture of damage. Can take more pictures if needed.