Small 4to (185 x 137 mm). Title printed within decorative border; engraved allegorical frontispiece, 18 engraved plates; text printed within double rule border. (Dampstained, a few leaves with marginal repairs occasionally crossing text or image, one leaf with marginal paper flaw, final leaf backed.) Contemporary limp vellum hand-lettered on spine, leather ties and catches (some soiling). Provenance: Early annotations crossed out on front free endpaper); "Garron" (early signature on title-page); Libreria de Cuesta Carretas a Madrid (small stamp on front free endpaper). 

FIRST AND ONLY EDITION OF ETTENHARD'S RARE TREATISE, "typical of all Spanish manuals of the period, prefacing their instruction with an account of principles of geometry...minutely defining paces and passes, and encompassing all their figures within intricate diagrams of circles in all planes, of chords, and of tangents" (Castle). The illustrations are by Ettenhard himself, who was a Knight in the Order of Calatrava and who served King Charles II of Spain as Lieutenant Captain of the Royal German Guard. Pardoel 170; Thimms p.95.