7 Grote black on pale to medium reddish yellow, perforated, cancelled by blue three-line railway cancel (TPO) "GM. HVR (. ) 8- (. ) IV Bremen", the stamp has reverse large glue remainders and point at perforation fault above and left at the top of, otherwise very fine, photo expertize Heitmann BPP "a very rare stamp and with railway cancel (TPO) are only very few examples known", Michel 5500, . plus