2, 55 L. Postal stamp with overprint error I " composition error 'a' in lieu of 'n' in 'occupation' " (only on field 17 occurring), unused, on the back small tiny stain spot lower left, extremely rare, expertized Diena and photo expertize Brunel VP (2017) "the stamp has authentic overprint in of the type II and original gumming. . . . The edition the variety was only 20 examples. ", Michel approximate 2.500.-