I bought a watch bracelet old style with coral, turquoise and bear paw on either side. Silver marks were IHMSS and HH underneath it. I have searched and there are 3 different HH silversmiths but this is basically HH as shown not separated or off line like the other two. I understand that IHMSS is indian homemade Sterling Silver. One piece of coral is split but still intact. Does this affect the value and who would u assume is the HH I seek. This is a pretty old piece as the silver is really black but that is not the reason I believe it is old. The weight, the silver leafs,etc are old style from other pieces I have. Should I leave it dirty or clean it. I am familiar with the problem of turquoise and coral.