Originally Posted by
Magpie
I only have one small Escher hone, and its label is already a bit less than perfect. From a strictly collectible standpoint, the existing damage to the label already renders it a poor specimen and low (comparative) value. By clear coating it I would be preventing any further deterioration of the label, thus preserving its value from any further degradation. I am fairly certain that the same general collectors rules apply to stones as to anything else. A polished coin is worth less than a coin with its original minting finish. I restored Model T less than an original factory car. But a new coat of paint will not lower the value of a model T that has been used daily and allowed to fade. If anything, it will increase it.