Twee kevers in een eikenboom (c. 1910 - 1937) by Willem Wenckebach https://www.rawpixel.com/image/13740395/twee-kevers-een-eikenboom-c-1910-1937-willem-wenckebachFree Image from public domain licenseJongens bij een wintervoorraad appels (c. 1910 - 1937) by Willem Wenckebach https://www.rawpixel.com/image/13740645/jongens-bij-een-wintervoorraad-appels-c-1910-1937-willem-wenckebachFree Image from public domain licenseThe anti-malaria school, Nettuno, Italy: large wooden-handled metal tools used in malaria control work. Photograph… https://www.rawpixel.com/image/13984729/photo-image-sword-wooden-public-domainFree Image from public domain licenseThe anti-malaria school, Nettuno, Italy: laboratory interior. Photograph, 1910/1937 . https://www.rawpixel.com/image/14000574/photo-image-art-living-room-public-domainFree Image from public domain license