000K  utf8
1500  fre
4000  Letters [from the Russian Ambassador to The Hague, Karl Ludwig August von Phull,] to [the Director of Moscow and St Petersburg Post Offices,] Konstantin Iakovlevich Bulgakov
4000  Письма к Булгакову, Константину Яковлевичу
4060  4
4961  https://ditav.gbv.de/receive/lod_mods_00000857