Keywords: Cannon Etudes-3 P.170 5.tiff en Picture of 15th c forged iron cannon supposedly of Italian origin taken from 'De Machinis Libri Decem de Marianus Jacobus' 1449 and reprinted in 'Études sur le passé et l'avenir de l'artillerie' T 3 P 170 fig 5 1862-01-01 Favé I Études sur le passé et l'avenir de l'artillerie T 3 Paris 1862 URL books google com/books id gh9EAAAAYAAJ Favé I Études sur le passé et l'avenir de l'artillerie T 3 Paris 1862 URL books google com/books id gh9EAAAAYAAJ other versions PD-old-70-1923 Uploaded with UploadWizard Cannons in 15th century |