Luksemburg i SDKPiL

[1893] List 1 do Leona Jogichesa – Tyszki

[1893] List 2 do Leona Jogichesa – Tyszki

[1893] List 3

[1893] List 5

[1894] List 7

[1894] List 8

[1906] SDKPiL – 1 maja 1906