Illustration shows the details of a steam-driven mechanical apparatus for opening doors. Illus. in: Gli artificiosi e cvriosi moti spiritali di Herone / Giambattista Aleotti. Bologna : C. Zenero, 1647. Publish More
Date of publication transposed: precedes publisher's name on t.p. Signatures: [par.]⁴ A-N⁴ [cross]². Title within architectural woodcut border. "Quattro theoremi aggiunti a gli artifitiosi spirti de gli element More