Le blason de France, ou, Notes curieuses sur l'edit concernant la police des armoiries
A 1697 Paris heraldry treatise by Thibault Cadot, published by Charles de Sercy and partners, explaining the regulation of coats of arms for French readers. Its plates show shields engraved in line and hatching, with tinctures indicated by patterns rather than colour, arranged in numbered rows on printed pages.
