Tentoonstellingsdocumentatie en artikelen met betrekking tot Leo Gestel (c. 1911 - c. 1981) by diverse vervaardigers https://www.rawpixel.com/image/13743625/photo-image-paper-person-artFree Image from public domain licenseFabrieksmedewerkers verlaten een fabriek, prentbriefkaart gericht aan Alphonsine Colin (1907) by anonymous and anonymous https://www.rawpixel.com/image/13754612/image-paper-person-public-domainFree Image from public domain licenseStamp Post Correspondence Communication Memories Concept https://www.rawpixel.com/image/1000065/free-image-rawpixelcomView license