Steenuilen en torenvalken (after 1873 - in or before 1917) by Theo van Hoytema https://www.rawpixel.com/image/13752277/steenuilen-torenvalken-after-1873-before-1917-theo-van-hoytemaFree Image from public domain licensePrimula in het mos (after 1873 - in or before 1917) by Theo van Hoytema https://www.rawpixel.com/image/13751949/primula-het-mos-after-1873-before-1917-theo-van-hoytemaFree Image from public domain license