Place of persons indicated on back

by Leenheer, Corn.
Published 1904, August.

International conference against the war. Place of persons indicated on back

by Leenheer, Corn.
Published 1921, November 15-16.

Werkkamer Edo Fimmen

by Leenheer, Corn.

International. . Amsterdam. (Netherlands)

by Leenheer, Corn.
Published 1904, August.

The first congress of the IFTU. The new executive board

by Leenheer, Corn.
Published 1919, July 28-August 2.

The first congress of the IFTU

by Leenheer, Corn.
Published 1919, July 28-August 2.

On the stairs of the ANDB-building. Place of persons indicated on back. Signatures below persons

by Leenheer, Corn.
Published 1904, August 14-20.

Place of persons indicated on back. Place of persons indicated on back of BG D1/389

by Leenheer, Corn.
Published 1904, August.

Place of persons indicated on back. On a copy the faces of the Russian delegates are erased

by Leenheer, Corn.
Published 1904, August.

On the stairs of the ANDB-building. Place of persons indicated on back of BG C3/982

by Leenheer, Corn.
Published 1904, August 14-20

Troelstra, Pieter Jelles

by Leenheer, Corn.
Published 1912, 17 september.

The first congress of the IFTU

by Leenheer, Corn.
Published 1919, July 28-August 2.

The first congress of the IFTU

by Leenheer, Corn.
Published 1919, July 28-August 2.

The first congress of the IFTU. Gompers at the head of the table

by Leenheer, Corn.
Published 1919, July 28-August 2.

AJC

by Leenheer, Corn.

Seat of the ITF: Vondelstraat 61 in Amsterdam

by Leenheer, Corn.
Published (1919?)

Headquarters of the IFTU, Tesselschadestraat 31 Amsterdam

by Leenheer, Corn.
Published 1925.

Personeel ITF

by Leenheer, Corn.

Place of persons indicated on back. Faces of Russian delegates are erased

by Leenheer, Corn.
Published 1904, August.

Mogelijk in Egmond aan Zee jaren '30

by Leenheer, Corn.