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 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.

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 a typical 18th-century Spanish weapon, designed to be stuffed down a musket barrel when out on a boar hunt or in a military context. Amazingly, it appears to have most of the original scabbard, with the top chape of pressed tin with a decorative motif. The bottom chape is missing.

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.