000K  utf8
1500  pol
4000  Letter [from the First Dragoman of the Embassy of the Polish-Lithuanian Commonwealth in Constantinople, Stanisław Kostka Pichelstein,] to [the Russian Ambassador to Constantinople,] Iakov Ivanovich Bulgakov
4000  Письмо к Булгакову, Якову Ивановичу
4060  2
4961  https://ditav.gbv.de/receive/lod_mods_00000853