Hi Marilyn, welcome to the forum!
The CCG was set up in the British Zone of Occupation in order to administer Germany. There were a lot of coal mines in that area of Germany. Here is the cap badge they wore:
British Control Commission Germany cap badge
Thanks for that Ade......After looking around your website I have been impressed by the wealth of knowledge shown by your members, I have sent a link to my son who is a C.S.M Infantry at enoggerra Barracks Brisbane and I know he has spent time looking and found it very interesting. If I was to try to sell my find on Ebay, could you help me with your opinion as to what category I should list. If you think it was possible to trace the family of the recipient I would be pleased to be able to give it to them.