TWO RARE BOOKS BOUND TOGETHER: 18th-century comprehensive study book for painters and printmakers, with many b&w illustrations and frontispiece, and a guidebook for correct lacquer usage. Title printed in red and black. 175x110mm. [XVI+544] + [144] pages. Contemporary leather Hardcover. Text block edges dyed red. Cover worn, stained and creased. Cover and spine edges bumped. Cover upper corners and spine upper edge peeling. Small worm-mark on front inner cover. Worm-marks on rear inner cover. Endpapers coming loose from cover. Ink inscriptions on rear whitepage. Small ink inscription on title page bottom corner. Pages yellowing and wavy. [FIRST TITLE]: Binding partly loose between frontispiece and title page. Page 81/82 bottom edge slightly tattered. [SECOND TITLE]: Several small wormholes on some pages with minimal damage to few letters of the text. [SUMMARY]: These two extremely rare 18th-century guidebooks for painters and printmakers have sustained some damage over the years, but are still in good reading condition.