Earlier today i saw this, https://media-cdn.tripadvisor.com/media/photo-s/0a/c5/5b/89/light-duty-canon-mounted.jpg and wanted to read more about it, but I can't remember what it was called and was hoping someone here would know. I've tried searching every possible combination that I could think of and was able to find this photo, but searching the name it gave has no other results.
As a related question, what purpose could such a weapon serve? Was it actually used on any battlefield? Is it a prototype?
This is called a wall gun. It was mounted in a swivel yoke that bore the weight, and still would allow the gun to be pivoted and aimed. As a typical wall gun caliber would be around 1.00, or 1 inch, a ball from it could travel further and do more damage than from a rifle of, say, .62 caliber, and be thus useful in defending a fort against enemy troops, or putting a sizeable hole in a boat trying to slip past the fort on a river or estuary. It was also quicker to load and aim than a canon.
Although a very fine 18th c. Virginia wall gun rifle exists, by Klette , ( possibly one of the four ordered by George Washington) I am not sure how many were rifled.
EDIT Looking closer at the photo, I do not understand why this one is mounted on a frame on a pair of light wagon wheels, set up to be pulled by a horse. But the gun looks French, and I don't know how many ways the French used wall guns.
