LOW COUNTRIES -- FRIESLAND -- "FRISIÆ ab Auctore B. Schotano a Sterringa". - "CORRECTISSIMA nec non Novissima Domini et Provinciæ Groningæ et Omlandiæ tabula". - (Amst.), Covens & Mortier, n.d. (first half 18th c.). 2 cold. engr. maps printed on silk. c. 500 x 600 mm each. Framed (±1900), and glazed between 2 layers of glass (both sides visible). (Margins a bit deteriorated in places, a bit browned and vaguely stained).