R.U.S.I. MAPS. Vol. XLVI. 1-3. 'Oesterreichisch-Schlesien'; map in three parts; mid 18th cent. 1:31000 approx. Scale bar of '2000 Rheinl. Ruthen oder 10000 ordinaire Schritt oder 1 Teutsche Meile' (= 222mm.). Map oriented with West-South-West at top. German. The three maps depict, respectively...