eu tenho essa medalha gostaria de saber a importacia dela

Hello,

Welcome aboard ⛵

As is often the case, play money imitates real coins. 

Here it's the portrait of the Queen of Australia and her halfpenny … at home.

entao a  medalha e real e de prata  e bem antiga gostaria de ter alguem para avaliar 

So it's not the token you quoted which is made of plastic. May you post photos of both sides and provide the exact diameter and weight?