"Big Northern Hotel, St. Petersburg."May 27, 1910 [open letter].

"Big Northern Hotel, St. Petersburg."May 27, 1910 [open letter].- 1910. -Addressed by Grigoryev Ivan Grigoryevich - grandfather Mikhalchuk Tatyana Nikolaevna, who passed the documents, the father of her father Grigoriev Nikolai Ivanovich..Electronic copy source: from a private assembly