A combination plow and cannon, patented in 1862 by C.M. French and W.H. Fancher:

As a piece of light ordnance its capacity may vary from a projectile of one to three pounds weight without rendering it cumbersome as a plow. Its utility as an implement of the twofold capacity described is unquestionable, especially when used in border localities, subject to savage feuds and guerrilla warfare.

“As a means of defense in repelling surprises and skirmishing attacks on those engaged in a peaceful avocation it is unrivaled.”