8vo (216 x 165 mm). Text in Greek and Latin with title printed in red and black and numerous in-text woodcuts, one full-page woodcut of the moving of the Vatican obelisk. Contemporary calf, spine in 5 compartments with 4 raised bands (rubbing, minor loss at spine tail, marginal losses to preliminary leaves). Provenance: contemporary penciled notations to front and rear interior boards, and at end of index.

FIRST EDITION of "the earliest known engineering textbook, doubtfully attributed to both Aristotle and Straton of Lampsakos" (Honeyman I:145). The author is traditionally believed to have been Archytas of Tarentum. Adams A-1846; USTC 146709.