1946: Commemorative issue for the National Stamp Exhibition in Dudelange, an imperf. proof in dark greenish blue showing an 'Old rolling mill' and stating a value of '50 F', on stiff creamy paper with full original gum, a rare proof.
1948: Regular issue Grand Duchess Charlotte 1 Fr., two proofs in black and in dark orange showing the final design, size appr. 35x40 mm. on stiff creamy paper without gum, a rare offer.
1956. Commemorative issue 'Council of State Centenary', proof in black of the 2 F value showing final design, overall size of the proof appr. 45x35 mm, on cardboard without gum, a rare offer.