Bidspirit auction | Imperial Russia - Postal Stationery

Imperial Russia - Postal Stationery items - Advertising Letter-Sheets - 1899, 7k blue, unused letter-sheet of series 45, printed in St. Petersburg, containing 21 various advertisements inside and on reverse, folded once, minor soiling, still nice condition, VF, ex-Vadim Ustinovsky, Est. $600-$700