Australia 1883 Sydney Half Sovereign PCGS AU50 (Type 5/3)
The scarce variant of a common date coin. In 1880 the Royal Mint introduced the type 4 reverse. However, Sydney and Melbourne continued to use their old type 3 reverses for some years afterwards. More can be found on this subject in the following research published by Top End Coins:
https://topendcoins.com.au/wp-content/uploads/2020/04/1882m-the-sixth-head.pdf
You can verify this coin on PCGS’s website by clicking on the link below: