Design for a Decorated Wall and Ceiling of a Gallery, marked with the monogram of the French King Henri III or IV https://www.rawpixel.com/image/9087542/image-vintage-letters-frame-frenchFree Image from public domain licenseDes Circkels unnd Richtscheyts, auch der Perspectiva und Proportion der Menschen und Rosse, kurtze, doch gründtliche… https://www.rawpixel.com/image/9099956/image-art-vintage-booksFree Image from public domain license