000K  utf8
1500  fre
4000  Letter [from the Secretary of the Russian Embassy in Vienna, Aleksandr Iakovlevich Bulgakov,] to [Minister of Foreign Affairs,] Count Nikolai Petrovich Rumiantsev
4000  Письмо Румянцеву, гр., Николаю Петровичу
4060  2
4961  https://ditav.gbv.de/receive/lod_mods_00000814