This sword, dating from 1805-09, would have been carried by an Inspecteur aux (or 'des') Revues (the equivalent of Commissary in the British Army), responsible for pay, provisions (hence the ears of wheat on the guard and knuckle bow) and the depot system. Before this, they simply carried an ordinary infantry sword. The sword is rare.

This is the SA dirk 1933 pattern, modified with a black finish to the scabbard by order of Korpsfuhrer Huhnlein in 1936. The RZM code stands for the firm Lauterjung & Co of Solingen. The top chape is engraved '15/24547' for Standarte 15, part of Nordmark Motorgruppe at Itzehoe, with the owner's personal NSKK number.

The hilt could be Dutch or French, the use of tortoiseshell having been introduced to Europe in the late 17th century, probably through Dutch colonial connections. The mid 18th-century German blade (26" long) would have replaced an earlier, shorter, straight, double-edged blade (broken?), probably to enable the weapon's use as a naval hanger.

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 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.