CALLIGRAPHY -- PIPER, J.J. "Pennewerk. AGDSM Amsterdam Tot Nut van 't Algemeen. (…)." - "Pennewerk. ABC Prüfet alles, und das Gute behaltet. (…)." - 1807. Writing exercises in ink on 2 vellum lvs. 182 x 215 mm. -- Added 1. o on paper, by H.A. (?) Steur, te Westerlee, dated 18 July 1805. -- (3).