Hi, I have a question about this insulator that my grandparents brought me from Ireland. As you can see from the picture, the insulator is light green and has a steel pin "cemented" in. The embossing reads on the front "VERLICA BELGIUM" and on the back "BT 48". My question is, what CD number is this insulator? Thanks for your help.

THANKS TO THE SEVERAL ICON MEMBERS WHO TOOK THE TIME TO ANSWER MY QUESTION. I HAVE BEEN INFORMED THAT IT IS A CD 460.

[IFONA CD 460]