200 million Mark dark olive brown serpentine overprint provissional issue May 1921, centered cancellation (BERLIN) nice (BERG 1) 2511.23 . m, according to BPP association expert Dieter Weinbuch is these cancellation genuine and date-appropriate, four missing / shorter perforation right above, small postmark spot, despite a attrative piece of this in cancelled form very rare occurring and hardly once offered stamp, signed Infla Berlin, Gaedicke BPP, photo expertize Weinbuch BPP