8 Pfg till 50 Pfg International Postage Stamp Exhibition (center piece from the souvenir sheet I) on postage exceeding tariff rate registered airmail cover, clean tied by the pictoral hand cancel "Berlin W 62.16. 9. 30", gum a little visible on the back, the cover is reverse thin, photo expertize mallet BPP (2014), Michel for single stamps 560.-