1964, Europa issue, 25c red, bright green and greenish black, 50c ultra, olive bister and brown red, imperforated set of two in complete sheets of 30, plate numbers and dates on selvages, full OG, NH, VF, Yvert #652-53 nd, €2,100 as singles, Est. $250-$300 (Image)

1989, 25th Anniversary of the Princess Grace Foundation, imperforated souvenir sheet of two stamps of 5f deep blue, full OG, NH, VF, Yvert BF48, €465 (Image)

Air Post stamps. 1955, Sea Birds, 100fr-1000fr, three complete sets of four imperforated trial color proofs, different colors for each denomination, full OG, NH, VF, Est. $250-$300 (Image)