8 Pfg. Numeral brownish carmine luminous, block of four mint never hinged, 1 stamp signed study group, Michel 200,-; (917c(4)) (Image 1) (Image)

60 Pfg numeral blackish gray red, cancelled superb item, expertized study group (933c) (Image 1) (Image)

6 Pfg worker black gray violet, right margin block of four mint never hinged, signed study group, Michel 240,-; (944aa(4)) (Image 1) (Image)

24 Pf worker bright brown orange as a single franking on long distance cover, in perfect condition, expertized study group Control Council, Michel 220,-; (951d) (Image 1) (Image)

5 M. Violet ultramarine, perfect cds cancellation, new photo expertize Ar fair Bernhöft (2018), Michel 180.-; (962b) Certificate (Image 1) (Image)

75 Pfg. Stephan, black blue violet, right margin copy mint never hinged (slight gum crease), photo expertize Bernhöft, Michel 150,-; (964b) Certificate (Image 1) (Image)