My son, Jaap Jessurun de Mesquita (Mijn zoon, Jaap Jessurun de Mesquita) (1915) print in high resolution by Samuel Jessurun… https://www.rawpixel.com/image/2698215/free-illustration-image-escher-portrait-samuel-jessurun-mesquitaFree Image from public domain licenseSelf–portrait with glasses and goatee (Zelfportret met bril en sik) (1930) print in high resolution by Samuel Jessurun… https://www.rawpixel.com/image/2698105/free-illustration-image-escher-samuel-jessurun-mesquita-portraitFree Image from public domain licenseProspectus voor de uitgave: P. Terpstra, Grafiek en tekeningen M.C. Escher, 1960 (c. 1959) by anonymous, Maurits Cornelis… https://www.rawpixel.com/image/13777006/image-paper-cartoon-personFree Image from public domain license