These dirks would have been carried by Royal Navy as well as merchant marine officers, even, rather more rarely, by army officers. This classic dirk has a whalebone haft (which, at first glance, might appear to be of walrus ivory, but on closer inspection is definitely whale bone) and iron mounts. The style of hilt, pommel and grip dates it.

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.

Regarding the regiment, the Grenadiers had a very specific gorget with multiple pierce work on both wings, the Scots Guards normally had '3rd Guards' engraved on both sides at the tips, therefore, by elimination, this is almost certainly a Coldstream Guards example. The Dighton watercolours of the period appear to confirm this.

This is a classic Ernst Pack dress bayonet, with no maker's mark, but the 'signature' screw bolts which no other maker used. The original owner must have been in a heavy artillery unit, as suggested by the obverse blade etching. These weapons were normally only worn when off duty, but in uniform.

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.