Keywords: Schaik33.jpg en Auguste Piccard Sketch drawn by Willem van Schaik 1876-1938 2014-07-12 18 22 54 Tijdgenoten getekend met lijnen door Willem van Schaik met woorden door Mr E Elias Amsterdam Andries Blitz 1937 Willem van Schaik 1876-1938 PD-old-70 Willem van Schaïk Uploaded with UploadWizard Auguste Piccard 20th-century caricatures Photographs uploaded by User Vysotsky |