000K  utf8
1500  fre
1500  rus
4000  Letters [from the Russian Envoy to London, State Councillor Aleksei Semenovich Musin-Pushkin,] to [the Councillor of the Russian Embassy to Warsaw,] Iakov Ivanovich Bulgakov
4000  Письма к Булгакову, Якову Ивановичу
4060  18
4961  https://ditav.gbv.de/receive/lod_mods_00000844