Lot 40289 – 1857 10k. brown and blue, « dot after ’10’ of ’10 KOP’  » variety and red cancel

1857 10k. brown and blue, showing the very spectacular « dot after ’10’ of ’10 KOP’  » variety, showing very decorative and centrally struck « DINABURG » circle hs in red (today Daugavpils in Latvia), small light thin spot at top, otherwise very fine and certainly unique with the combination of this variety and this red postmark, as well as one of the most appealing examples known of this rare prominent plate flaw; signed Scheller; Mi. €3’000 (for the variety only).