The 20 Francs - Baudouin I French Text (Belgique) 1980 is a common coin, but is the misalignment a known variety? That is, with the digits "20" horizontal, when flipped the protrait is slightly rotated anti-clockwise and the signature and marks are not at the bottom, but slightly round to the right.
Anyone else noticed this? It may be a fake, or perhaps the Belgian mint had a knack of misaligning coins!
Matt