Engraving was pretty common for items that are made to be used for decades. High quality watches, clothing items, etc. all had the initials engraved. Maybe bac

Engraving was pretty common for items that are made to be used for decades. High quality watches, clothing items, etc. all had the initials engraved. Maybe back in the day people believed that iPods can be used for decades (I guess they can be if the battery can be switched, I’ve never had one. So not sure)