Oh! so it is CllG. I first thought it might be that, but ruled this out when compared to all the caithness paperweights with the CIIG marking I do have. The first and the second marking does looking joined, which at some point I did read as the letter m. Obviously being a novice on the subject matter, I could not recognise that there was any fault with the 60. Could you either explain what the actual fault is or have you got any comparison pictures which would help me in the future, especially when buying. Thanks