Fantasy or not?

Why this is fantasy:

N#168643

And this is not:
N#90832

What is the criteria?

I think by 1977 the family clan had no real power anymore as Australia was at the helm at that point. Maybe these items were a last ditch effort but you could interpret them all as fantasy objects at that point (see the X#).

Seems all are from the same series

www.pns.org.au/pdfjournal/PNSJFeb2021.pdf

In 1977, Ross V  (owner of the land) introduced the first metal currency to Cocos by having $100,000 worth of coins minted to his order by the Mint of Valcambi in Switzerland ahead of a Federal Government plan to extend the Australian currency to the Islands. 

About fantasy or not, I will not put as fantasy since there is a strong difference between something historical related than something I can do with a 3d printer.