Bidspirit auction | Russian Zemstvo (Rural Post) -
Russian Zemstvo (Rural Post) - Bobrov - 1879, Numeral in Rectangle, 3k black on green paper, enlarged top margin vertical strip of six of all existing types, full OG with typical horizontal folds, five stamps are NH, F/VF and rare multiple, Chuchin #4, C.v. $4,000, Est. $2,000-$2,500 , Schmidt #6K