1912 Gotha, 12pf violet blue, also Berlin-Angora 2GM, h.r., creases, otherwise fine, cat. €800 (Cat No. Mi.5,12) (Image)

Cat. €800, Est.US$150

1912 10pf and 20pf set of three, unused, first two with gum, 20pf without gum, minute abrasion at top, otherwise fine-v.f., rare set, each signed Dr.Oertel, etc., cat. €4200 (Cat No. Mi.6-8) (Image)

Cat. €4200, Est.US$1,000

1913 25pf lilac red, canceled by "Este Flugpost 13 Sep 1913 Feldberg" and used in combination with regular 5pf adhesive on flown card from Mulhausen to Freiburg, with photo and signature of the pilot on the picture side, fine, cat. €900 (Cat No. Mi.10) (Image)

Cat. €900, Est.US$250