This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Crapadeau Etudes P. . en One of Carl the Bold's cannons taken by Swiss at Morat Smith and DeVries consider such construction to be 'crapaudeau' longish smallcaliber cannon In three projections From 'tudes sur le pass et l'avenir de l'artillerie' fig Fav tudes sur le pass et l'avenir de l'artillerie Paris URL books google id