World youth = Jeunesse du monde = Juventud del mundo = Weltjugend : international youth magazine published by the World Federation of Democratic Youth

Date 1957-1960

Social-Demokraten

Bibliotheek Camille Huysmans Date 1896-1924

Congrès Ouvrier Socialist International = Internationaler Sozialistischer Arbeiterkongress = International Labour Congress of Socialist Parties : Hamburg 1923

3 losse bladen Date 1923

Solidarité : organe des brigades étrangères en Yougoslavie

Fonds Perrone Date 1950