76/1791 [Genealogy and heraldry]. "'t Wapen van Pieter Post (Architecq van Prins Frederik Hendrik pr: v: Orange) (...)". Armorial drawing, gouache on vellum, 18x13,5 cm., late 17th cent., manuscript text in pen and ink on verso. - AND 5 others, 18th-(early) 20th cent., incl. armorial drawings and a manuscript genealogical tree w. num. watercolour coats arms, dated 1731 (doubled; folded; heavily worn).