Outpost before Moscow, trial proofs in the colours blue-green, violet, dark red, brown and blue, on ungummed paper, unperforated, always being a vertical gutter pair with left adhesive ornamental fields, the upper brown stamp tiny at picture edge affects, gutters are only from the trial proofs recorded, obviously were all normal sheet cut up. Extremely rare, for any man value photo expertize copy (for the complete sheet) autumn (2007) : "already single values are very rare. ", Michel estimated 5. 000.