Schoolchildren show how they wash their hands during a trip of the 'Preparatory Rural Hygiene Commission' of the League of Nations
Onbekend / Unknown (Fotograaf)
07-1936
Javaans
TM-ALB-1404-18
Foto
Nationaal Museum van Wereldculturen
PD-anon-70-EU
https://creativecommons.org/licenses/by-sa/4.0/
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