I'm not talking about serial numbers.
But the personalized engravings. Sometimes you come into possession of something and it's already engraved so I don't think you can engrave, and I'm 99.9% positive you can't erase. I think this would be nice to do for when you either want to replace an engraving that either means nothing to you or has faded over time with something more close to the heart/important to the character without say dropping another 40-80k on a new item of that type.
Obviously comes with a cost.
Thanks for the consideration!