Pieces 124 two missing years (?)

https://en.numista.com/catalogue/pieces1244.html

That first coin is the French language version of a 1 Franc Belgian coin

https://en.numista.com/catalogue/pieces571.html

 and that second Flemish version has mintage years of 1953 and 1957

Should the first French version also have those two years listed ?
I have no coins to confirm this - so would not add them myself, even
 if 'Mintage - Year list is complete' were not locked !

no, according to catalog it shouldn't. there just were no 1953 and 1957 mintages it seems.