Help Identifying Coin (Id: Card Game Counter Token)

It has the design of a spade guinea with good old George III on it. It doesn't look gold though. How much does it weigh? Australia made a replica.

either a spade guinea or a brass token copying one. More likely the latter.

Note that a real spade guinea is 8.4 grams and 24 mm; "just over an inch" would be 26-27 mm, a size more typical for copies (like this one).

Definitely not a genuine guinea, or genuine gold. It's a card game counter token, usually sold in little bags with decks of cards, back in the day when gambling using real money was illegal.

Sometimes, the makers of these tokens would encode their own names into the abbreviated Latin legend. Not in this case, though they have made a couple of typos (fo example, it should be "M.B.F. ET H. REX", instead of "M.E.F. ET HR. EX") which may be a very subtle coded name.