coin

Description

This coin was found in Australia during a metal-detecting search on dry, reddish soil.
The obverse shows a heavily worn crowned portrait facing left, with most of the inscription completely unreadable.
The reverse appears to depict a shield flanked by two animals — likely a kangaroo and an emu — but the details are eroded and difficult to confirm.

It might be an early Australian or colonial-era copper coin, but the exact date, denomination, and origin remain uncertain.
Any suggestions or identification attempts are welcome.