1976 - 1982, special souvenir sheets Michel-no. 501 / 05, 407 / 11, 417 / 21, 513 / 17, 527 / 30, 632 / 35, 648 / 51, 653 / 57 and 903 / 04, always single block, in France reputed "blocs speciaux sur paper gomme", decorative collection addition