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.

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.

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 hanger is almost certainly of German origin, probably the Oels family of Brunswick (the hereditary dukes) because of the presence of the gold 'O' featured in four places on the mounts. An unusual feature is the ovoid pommel, similar to that of a smallsword of the period.

This hanger, almost certainly of military or naval origin, is an exceptionally clean example with a 24" sawback blade and a staghorn grip. Typically they would have been used in the Seven Years War, as well as in the US War of Independence. It would have been carried in a brass-mounted leather scabbard, now sadly lacking.