After AF Van Campen c1759 Dutch, Monochrome engraving on Whatman like lined watermark paper and remains of letter verso, ' Ludovicus Van Den Steene 1756' , a knight on horseback, Letter verso to publisher basically says (when translated) the constant protestations only delay further the required drawings therefore leave me alone. Signed by AF van Campen, 11 1/4 x 7 7/8''. Includes Dutch and English translation of letter.