Title: Vserossiĭskiĭ soi︠u︡z rabochikh metallistov v borʹbe za pretvorenie v zhiznʹ leninskoĭ taktiki edinogo fronta (1920-1928)
Subjects: Metal-workers, Labor unions, Professionalʹnyĭ soi͡uz rabochikh metallurgicheskoĭ promyshlennosti
Places: Soviet Union