This is an Austrian pattern, which was adopted by the British army in 1796 as a dress sword for Heavy Cavalry general officers and militia units. It would have been used throughout the Peninsula War and at Waterloo and beyond until about 1820 or so.

This was introduced in 1859 for the Royal Navy to supply a need for a cutlass and a bayonet in one weapon for the naval rifle of the era, a .577 Enfield cap and ball weapon. This is an A & E Holler example - ie a Solingen blade. There are no UK ordnance marks, so this is almost certainly an American export item.

This die-struck badge was awarded by the Weimar Republic to WW1 tank crews who had served in three assaults or been wounded in the course of one. The soldier had to apply for the badge and, once he had received the award document, would privately purchase the badge. Sepp Dietrich, commander of the LAH, wore this in 1940 photos.

In April 1939, this award was instituted to commemorate the bravery of the German volunteers in the Spanish civil war. 1,126 awards in gold with swords were granted. It is marked L56 on the reverse for the maker Robert Hauschild of Pforzheim.

This is likely to have been made towards the end of the American Revolutionary War (Peace of Paris, 1783) or during the early part of the Napoleonic Wars (starting 1793). This would have been carried by an RN officer or HEIC naval officer, and this example is interesting in having a particularly long (approx 26") blade.