Bidspirit auction | Imperial Russia - Postal Stationery

Imperial Russia - Postal Stationery items - State issues - 1896, reply letter card essay of 10k+10k blue, contains two unsevered letter cards, size of each 174x106mm, appropriately folded, VF and scarce in sound condition, such essays were presented to participants of the UPU Conference of 1906 in Rome, SC #ES6, C.v. $2,000, Est. $1,000-$1,200