My only insulator this weekend, from a flea market. Hemi Blue CD 252 [220]. I think it's a [220]. All of the embossing on the back is definitely done over blotted out (unreadable) text. Also, as you can see in the picture, the No. 62 appears to be redone over blotted out text, or at a minimum it used to say No. 2, and they squeezed a 6 in before the 2. About half the drip points are gone, but no other damage. Interesting piece.