Leybourn (William): Panorganon; or, An Universal Instrument Performing All Such Conclusions Geometrical and Astronomical As Are Uusually Wrought by the Globes, Spheres, Sectors, Quadrants, Planispheres or Other Like Instruments, two parts in one vol., sm. 4to, for William Birch, 1672 [Wing L1928], engraved frontispiece and two folding plates, woodcut illustrations (the first plate torn along fold, some soiling and staining of margins, some lower margins wormed, final leaves damp-stained), old boards (no spine).