Sorry, but it's not an error. It's almost certainly a "blob of glue", where two coins had been glued together, then prised apart again.
Glue that is transparent, when sitting on a metal coin, can look just like a piece of metal.
Glue that is transparent, when sitting on a metal coin, can look just like a piece of metal.
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
























