The coin is in better-than-average condition, with "honest wear" and minimal corrosion; it would probably be worth a couple of pounds - if it were not for that nasty damage to the rim at the top. I think that damage makes this coin drop in value from "a few pounds" to "a few pence".
Such a shame.
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