I think it's the little LB monogram (or whatever that is), off to the northeast of the axe. If there is nothing to the right and slightly above the axe, I guess that would be the no signature variety.
Edit: I just looked at a 1943 coin. The signature is not northeast of the axe, it's due east. To the right of, not right and above. Just above the end of the right-hand wheat stalk.
As I recall, the variety without the designer's initial (LB for Lucien Bazor) is between forget that new car rare and second mortgage on your house rare.
Numismatic author & owner of the Uncommon Cents collections. 2011 Fred Bowman award winner, 2020 J. Douglas Ferguson award winner, & 2022 Paul Fiocca award winner.
If the one without the signature is that rare, it brings the thought that somewhere there must be somebody removing signatures from aluminum Vichy francs. Certainly if it were a US coin, that would be the case.
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Edit: I just looked at a 1943 coin. The signature is not northeast of the axe, it's due east. To the right of, not right and above. Just above the end of the right-hand wheat stalk.
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