German DEMAG Ersatz Bayonet Trench knife. WW1 EB1

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A rare and genuine example of the famous ersatz (EB1) Crank Handle bayonet. This is one of the few ersatz bayonets for which a maker is attributable. Deutsch Maschienenfabrik AG (DEMAG), Duisburg produced these bayonets between 1915 and 1918. The maker’s mark is stamped on every blade. There are four variations of the markings dependent on the period of production. The “Gesetzlich Geschutzt” stamp on the ricasso of this example, and the “DEMAG. Duisburg” circle on the obverse indicate that it is one of the post 1916 production knives.

Designed to fit the G98 rifle the bayonet has a very distinctive handle shape, earning it its “Crank Handle” nickname.

The 148mm double-edged blade is in very good condition. The blade is stamped on both sides of the ricasso with the maker’s logo and the spine bears an inspection mark or waffenampt. The blade retains its original leather washer.

The grip retains some of its original paint and the spring locking mechanism works perfectly.

The original steel scabbard is in good condition and the leather belt loop is intact. There is a central cut in the rear of the belt loop but this does not affect its function. The press-stud catch exhibits the correct “snowflake” pattern.

This is a rare and iconic German World War One trench knife bayonet in all-over excellent condition.


NB. There are many fakes of this sought after knife but only the originals have peened rivets in the grip and are marked on the ricasso spine with an inspection stamp. The leather retaining strap – when present, has a “snowflake” style pattern on the press-stud. These are missing on the fakes. There are numerous other differences between the real and fake models, such as blade and crosspiece thickness but the above pointers are easily spotted without the need for callipers.


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