Geertruida den Dubbelde (1647-84), Wife of Aert van Nes (1668) by Bartholomeus van der Helst and Ludolf Bakhuysen https://www.rawpixel.com/image/13742039/image-face-person-artFree Image from public domain licenseMiG-15.The MiG-15 made its first combat appearance, over Korea, in November of 1950. https://www.rawpixel.com/image/4024262/photo-image-building-public-domainFree Image from public domain license