Yep, it's a button - the central corroded pit was where the loop of the button was once attached. I believe "PLATE" is part of the word "PLATED" - button-makers apparently liked to advertise what kind of workmanship went into their product.
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



















