000K  utf8
1500  fre
4000  Letter from [the Chamberlain to King Stanisław August Poniatowski, Szymon Dzierzbicki] to [the Secretary / Councillor to the Russian Embassy in Warsaw,] Ia[kov] I[vanovich] Bulgakov
4000  Письмо к Булгакову, Якову Ивановичу
4060  2
4961  https://ditav.gbv.de/receive/lod_mods_00000833