Postzegel met een portret van Mohammad Ali Sjah Qahar (1909) by Pieter Dupont https://www.rawpixel.com/image/13738719/postzegel-met-een-portret-van-mohammad-ali-sjah-qahar-1909-pieter-dupontFree Image from public domain licenseCairo - View from the Mosk of Mohammed Ali, Showing the Mosk of Sultan Hassan by Francis Bedford https://www.rawpixel.com/image/14323326/image-public-domain-walls-towerFree Image from public domain license