200 million Mark dark olive-brown, serpentine overprint, provisional issue May 1921, full cancellation (BERLIN-) SCHÖNE (BERG 1) 2511.23 ... m, according to BPP expert Dieter Weinbuch this cancellation is genuine and contemporary, four missing/short perforations at upper right, small cancellation stain; nevertheless an attractive example of this stamp, very rare used and hardly ever offered, expertised Infla Berlin, Gaedicke BPP, photo certificate Weinbuch BPP.