Coins that have names engraved on them as keepsakes are often called "love tokens". Most love tokens are more carefully engraved than this example; this more qualifies as "graffiti" instead. Unless it's some kind of family heirloom that has remained with the family and you have some idea as to who "James" might have been, them I'm afraid a "damaged coin" is all people are going to see here.
1758 is the commonest date of the George II shillings. I think it would be hard to find people prepared to pay above melt value for it.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis