Camilli Leonardi Speculum Lapidum,
Camillo Leonardi's Speculum Lapidum, a 1717 treatise on gems and stones compiled and edited by later scholars, printed for students of natural history and gem lore. Its pictures are small black-and-white woodcut initials, flower vases and diagrams of cut stones, showing how early printers built decorative ornament and technical figures that a designer could borrow for borders, initials and botanical motifs.
