40 Centimes with black printing imprint "MEMEL 60 pfennig" and oblique, dark blue imprint "FLUGPOST", dark grey-red / turquoise-grey on white paper, right upper corner piece from the sheet block 5 with printing error IIa: distance between 6 and 0 of the value indication", flawless condition except for the pencil notation in the margin, photo certificate Tobias Huylmans (2016), "genuine and flawless", Michel 450.-