Luxembourg 15.5.1956 PCGS Graded 100 Francs (Face and Back Photographic Proof)
Luxembourg 15.5.1956 PCGS UNC 62 100 Francs (Face Photographic Proof)
Luxembourg 15.5.1956 PCGS Very Choice UNC 64 100 Francs (Back Photographic Proof)
Photographic proofs for an unissued 1956 100 Francs for Luxembourg. Completely different from anything ever isseud by the country, these are remnants from the design process, and they are presumably unique. Photographic proofs such as these were ignored by the collecting community for many years, but they have really started to come into their own, as they are typically all that's left of the design process before actual notes were printed. Not to be missed. PCGS mentions "Minor adhesive residue, mounted on cardstock".