Australian fifty-cent coin - Wikipedia

Fifty Cents Royal Australian Mint

Cent (currency) - Wikipedia

Coins of Australia - Wikipedia

Australian pound - Wikipedia

Why was the Canadian 50 cent coin discontinued? - Quora

Wikimedian in Residence – Supporting the University of Edinburgh's commitments to digital skills, information literacy, and sharing knowledge openly

Decimal Day - Wikipedia

Barbadian dollar - Wikipedia

Coins of the Australian pound - Wikipedia