Hello and welcome. 
What you've got definitely sounds like a "gunmoney" halfcrown. "Ang" is actually "Aug" - short for August. "XXX" is the denomination mark, there being 30 pence to a halfcrown.
I have an August 1689 gunmoney halfcrown, purchased at a local coin auction for $33 back in 1998. Here are pics:

What you've got definitely sounds like a "gunmoney" halfcrown. "Ang" is actually "Aug" - short for August. "XXX" is the denomination mark, there being 30 pence to a halfcrown.
I have an August 1689 gunmoney halfcrown, purchased at a local coin auction for $33 back in 1998. Here are pics:

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




















