Vestingplattegrond van Steenwijk (c. 1650 - c. 1799) by anonymous https://www.rawpixel.com/image/13795029/vestingplattegrond-van-steenwijk-c-1650-1799-anonymousFree Image from public domain licenseMap of Saldanha Bay (c. 1784) by Robert Jacob Gordon and Johannes Schumacher https://www.rawpixel.com/image/13788627/map-saldanha-bay-c-1784-robert-jacob-gordon-and-johannes-schumacherFree Image from public domain license