Pen and ink perspective drawing on paper by Leonardo from 1487 of a cannon foundry. It depicts the inside of a factory for casting cannons from bronze and the process of installing of a heavy cannon barrel on its wheeled gun carriage by a large number of labourers. The barrel is being hoisted entirely manually by means of block and tackle on a crane and levers. It also shows bronze barrels awaiting assembly and the necessary ancillary equipment | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Terry, Sheila |
Taille de l’image : | 3545 px × 4930 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |