Pattern 1796 heavy cavalry sword
The Pattern 1796 heavy cavalry sword was the sword used by the British heavy cavalry (Lifeguards, Royal Horse Guards, Dragoon Guards and Dragoons), and King's German Legion Dragoons, through most of the period of the Revolutionary and Napoleonic Wars. It played an especially notable role, in the hands of British cavalrymen, at the battles of Salamanca and Waterloo.
Source: Wikipedia — Pattern 1796 heavy cavalry sword (CC BY-SA 4.0)