Bidspirit auction | Poland - Russian stamps used

Poland - Russian stamps used in the Kingdom of Poland - 1907 (October 10), Imperial Coat of Arms 2k green - four singles, horizontal pair and strip of three; 4k red - three singles, printed on vertically laid paper, met altogether 30k postal rate, used on large size registered cover from Klomnice to London via Germany with TPO cancel on reverse along appropriate London ''OC.25.07'' receivers, minor cover edges wearing, still F/VF and nice item, Est. $200-$250, Scott #55, 57C