Postwar internment camps for Dutch collaborators, 12 covers/postcards from internment camps Marum, Sparje Bird, Erfprins, Valkenheide Maarsbergen, Vught and Harskamp including rare censor mark Interneeringskamp Marum Censuur, administrative marks Gevangenkamp Erfprins, Districts Gevangenkamp B.S. Valkenheide in folder
