Anyone Know This Coin?

G'day, the pic doesn't have much detail.
The shape of the portrait reminds me of QE2, first type (1952~ ), and she's facing in the correct direction.
The material could be gold or brass, judging solely by colour.
Size would help to determine if it's a coin, and which denomination.
There are no Australian coins of that colour, during the period in which that portrait was used (upto 1964)
The poms had a brass threepence, but I don't think that the planchet was circular.
The Poms and Rhodesians created gold coins with that portrait.
Peter in Oz

I don't think it's modern coin. It does look sort-of like the early, Mary Gillick portrait of Queen Elizabeth II, but the base of the bust goes all the way down to the rim of the coin - that's not normal.

To me, it sort of looks like an ancient Roman coin, but who or what is impossible to say. I certainly can't read the legend. Why do some ebay sellers have to have such tiny, "looking through a telescope the wrong way" pictures of coins?