1941 card and two unaddressed covers, card franked with perforated 20+20 black and ultramarine, covers franked with perforated single (additionally franked with 20k) and horizontal pair (respectively) of 30+30k black and ultramarine, type II, some toning, otherwise fine-v.f., cat. €1550 (Cat No. Mi.1A,2AII) (Image)

Cat. €1550, Est.US$500

1941 forgery of the 20+20k violet ultramarine, imperforate single on stamp paper, some creases, interesting reference (Cat No. Mi.1B/F) (Image)

Est.US$150

1941 30+30k black and ultramarine, type I, upper right sheet corner margin single, variety imperf. at right, n.h., v.f. and rare, only 10 printed, signed Eichental, with 1989 Krischke certificate, cat. €500 (Cat No. Mi.2AIUr) (Image)

Cat. €500, Est.US$1,200

1941 30+30k blue and black, type II, imperforate sheet of 25, five stamps at right and third stamp in the bottom row are in black only, as the blue color is omitted, never hinged, several horizontal creases mostly between stamps and in the bottom margin, some inconsequential printing flaws, v.f. A fabulous and spectacular se-tenant error sheet, undoubtedly unique, with 2007 Krischke certificate ("druckbogen sind aussert selten, in dieser kombination mit grosster wahrscheinlichkeit unikat") (Cat No. Mi.2BB II/2B IIF) (Image)

Est.US$14,000

1941 30+30k black and ultramarine, type I, imperf. lower left sheet corner margin single, n.h. (usual streaky gum), v.f., signed Bartels, etc., cat. €1000 (Cat No. Mi.2BI) (Image)

Cat. €1000, Est.US$500