All Subjects
- Saluting--Spain--1930-1940.
- Ships--1930-1940.
- Sick persons--1930-1940.
- Skulls--1930-1940. (2)
- Snakes--1930-1940. (3)
- Soldiers--1930-1940. (2)
- Soldiers--Russian--1930-1940.
- Soldiers--Spanish--1930-1940. (5)
- Spain--History--Civil War, 1936-1939--Air operations--German--Spain.
- Spain--History--Civil War, 1936-1939--Air operations. (9)
- Spain--History--Civil War, 1936-1939--Campaigns & battles. (2)
- Spain--History--Civil War, 1936-1939--Casualties. (7)
- Spain--History--Civil War, 1936-1939--Children. (3)
- Spain--History--Civil War, 1936-1939--Communications.
- Spain--History--Civil War, 1936-1939--Destruction & pillage. (3)
- Spain--History--Civil War, 1936-1939--Economic & industrial aspects. (3)
- Spain--History--Civil War, 1936-1939--Medical aspects.
- Spain--History--Civil War, 1936-1939--Military personnel--Russian.
- Spain--History--Civil War, 1936-1939--Military personnel. (42)
- Spain--History--Civil War, 1936-1939--Prisoners.
- Spain--History--Civil War, 1936-1939--Refugees. (2)
- Spain--History--Civil War, 1936-1939--Women. (2)
- Spain--History--Civil War, 1936-1939. (58)
- Spain.--Ejército Popular de la República.--Brigada Internacional.
- Swastika--1930-1940. (5)
- Symbols--1930-1940. (8)
