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 in each case right attaching ornamental field above and the lower stamp with scarce ornamental field with printer sign!, in this kind just once in the printing sheet occurring, for any man value photo expertize copy (for the complete sheet) autumn (2007) : "already single values are very rare. ", Michel 9. 600.