Even if the engraver is one of the best and the engraving is old world class, The gun has not only never been shot it has never even been cocked, Be like a GNX with 0 miles that someone didn't like black so they painted it red, Just didn't know
If you did a full customization and then engrave it, no. If it's just off the shelf and you engrave it, then it would be up to the person that that ends up buying it. In most cases it will hold the same as un-engraved one unless it's done by someone with a huge reputation.
Ahhhh no I didn't see it. Well to late now. IMO whoever engraved her back then didn't have a crystal ball and prob thought they would never climb like they have. I don't mind engraving but would never do it to any of mine. Sad thing is the value will be drastically lower than if it was original. Still a nice piece