


What I found:
- Kokoshnik mark (1889-1908) for 84 silver, assayer YL (Yakov Lyapunov, Яков Ляпунов, active in St. Petersburg 1899-1903).
- Cyrillic GN (г.н) maker's stamp, I can't find any.
- two last marks are later, Polish, after 1921. Oval one for small silver items .875 standard, small W (not clearly visible on my picture) means Warsaw (?).