1892.3.15 Cover from St Petersburg to Troitskosavsk, arrived 4.15, on reverse. Hellrigl recorded only 8 covers originated from Kyakhta
1892.3.15 Cover from St Petersburg to Troitskosavsk, arrived 4.15, on reverse. Hellrigl recorded only 8 covers originated from Kyakhta prior to 1890. Earliest datestamp of Troitskosavsk, pre-dated Hellrigl’s record by 2 years!1892.3.15聖彼得堡寄恰克圖，4.15到達，此戳比韓利格記錄早兩年多！
