Copper engraving, coloured, mm 360x430. Splendid wind rose framed in a decorative barocche bordure; winds are name din italian latin and dutch; from “Specula Physico-Mathematico-Historica Notabilium ac Mirabilium Sciendorum” by Johann Zahn (1641-1707) famopus german matematician. Nicely colored and well preserved.