CLAVIUS, Christophorus. Tabula altitudinum solis pro horis astronomicis in signorum initijs, ad omnes gradus altitudinis poli borealis, Rome: Aloyse Zannetti, 1603. Small 4, woodcut emblem of the Jesuits on title, diagrams (small repair to verso of title, upper corner unobtrusively waterstained), modern boards. FIRST EDITION. BM STC 17 Century Italian, p. 240.