1 Franc 1952 Belgium

1 Franc, 1952, Belgium
I have a question about this 1952 franc.It has French text, but does it have the signature 'Rau' or not? It's hard to tell because the coin is not in good condition and the details aren't very clear. For comparison, here's another coin from 1955 that clearly has the 'Rau' inscription. What do you all think?"

I clearly see a weakly printed RAU on the first two images of your coin.

By comparing the images with the ones on the Numista pages, I noticed that on the French coin, RAU is more centered under the neck, while it is a bit to the right of the center on the Dutch coin. If that is a structural difference then the 1955 coin you give for comparison, is the Dutch one.

Compare:

N#1244

N#571

Thanks