Here we see New Caledonia's regular circulation 50 francs of 1967.
Ignore the 'essai' text on the obverse and you see the coin as it was issued.
The obverse and the reverse designs, with their unusual font, were the work of French sculptor Raymond Joly (http://www.worldofcoins.eu/forum/index.php/topic,7241.0.html).
Image copyright of cgb.fr Numismatics Paris (https://www.cgbfr.com).
A pattern by Georges Guiraud was also produced dated 1967 but never issued.
The font is more regular than Raymond Joly's.
The design, of a native hut surrounded by pine trees and a palm tree, is similar to Joly's but more attractive.
Image copyright of cgb.fr Numismatics Paris (https://www.cgbfr.com/nouvelle-caledonie-pre-serie-sans-le-mot-essai-de-50-francs-revers-georges-guiraud-1967-paris-fdc65,fco_524373,a.html).
Guiraud had designed the charming French circulation coins of the 1950 that feature a cockerel.
See: French coins from the 1950s until the introduction of the euro (http://www.worldofcoins.eu/forum/index.php/topic,47843.0.html).