The Model 1850 Army Staff and Field Officers' Sword was carried by all members of staff departments, Field Grade officers of Artillery and Infantry, Company Grade Officers of Light Artillery, Staff Officers and Aides-de-Camp between 1850 and 1872. It was based on a French pattern. Though other swords were by regulation allowed, this model was by far the most popular sword carried by officers during the American Civil War. The Staff and Field Officers' Sword is distinct from the Model 1850 Army Foot Officers' Sword.