The model represents a piece of artillery
constituted of a firearm in bronze, partially backloading, with unscrewable conical obturator. The artillery mount does not have wheels. The cradle can be maneuvered in elevation only, by means of two pegs that can be inserted into the series of holes on the mount.
The model is based on the drawing:
- Codex Atlanticus f. 931 b r. (1487)
Milano, Biblioteca Ambrosiana