ZB53 SG No. A86A Römer at Frankfurt : Watermark 'multiple letters', perforated 11 - 20 Pfg. ; blue Only available in set! In the same set : ZB41 ZB42 ZB43 ZB44 ZB45 ZB46 ZB47 ZB48 ZB49 ZB50 ZB51 ZB52 ZB53 ZB54 ZB55 ZB56 ZB57 ZB58 ZB59 ZB60 ZB61 ZB62 ZB63 ZB64 ZB65I ZB66I ZB67I ZB68I The complete set : ZB41-68I 165,00 €