An original prototype of what would eventually evolve into the iconic Napoleon Field Cannon, it was developed in the 1820s. Using a 12-Pound solid shot (although 10-Pounders were also made and deployed), the cannon was imported into The Mexican Army. As a mainstay of it's Artillery Corps. - the weapon had an effective range of up to 1,400 yards. Crew served by 6 Gunners – the weapon saw use from The Siege of The Alamo through The Mexican War. It was eventually replaced with more reliable rifled guns in the 1860s and 70s.