MINT & USED SELECTION INCLUDING ERRORS ON STOCK CARDS: Errors on 'Germania' types incl. 1920 (Jun.-Dec.) 15pf used with inverted overprint, 1920 (Aug.) 10pf carmine with double overprint; 1920 "Danzig" opts. to 2m.50 cancelled 14 Jun. 1920 (FDI) on unaddressed cover, 2m.50 (SG 12) and also 5m on 2pf grey (SG 39A) both with "ZOPPOT" c.d.s, both 'expertised' on reverse. Other issues with perf. shifts. opt. shifts, offsets, etc. Viewing recommended. (14 plus cover) (Image)