No problem Garry 
 
There will always be some good stories to sell such items. 
Anyway, this is what I just found on another webpage: 
The Hitlerjugend did wear an authorized Seitengewehr which was simply a  standard KS 98 which had an enameled HJ diamond inset into the obverse  grip. The bayonet was officially termed Seitenwaffe der  Wachgefolgschaft. The bayonet first appeared in the 1943 edition of the  yearly Party organization 
book, "Organisationsbuch der NSDAP," but there  is no mention of the duties of the Wachgefolgschaft. As its name  implies, the group was a security or guard unit of the HJ. The HJ was,  by then, supplying older personnel to the military to serve as  flakhelpers, laborers, air raid helpers, etc. By the end of the war HJ  members were under arms and serving in self defense units as the front  closed in upon their towns and cities.
HI Seitenwaffe hilt. This Hitler Youth Seitengewehr has an unmarked blade with a wide fuller.
It is a late bayonet with a white metal hilt that has a plated finish which is proper for these bayonets. The enamel 
HJ insignia is properly inset into the black plastic grip as it should be.
The reverse of an HJ grip insignia with two pins is shown to illustrate the proper method of attachment.
The  HJ Wachgefolgschaft Seitengewehr was a late model KS 98 which had the  enameled HJ diamond inset into the obverse black checkered plastic grips  of the bayonet in exactly the same manner as on the HJ-Fahrtenmesser.  The only known official illustration of the bayonet shows it with a 20cm  blade, but examples with 25cm blades have been observed. As with all  bayonets with grip insignia, the insignia should be properly mounted to  the grip with pins. In this instance, the insignia should be inset into  the grip, just as on the 
HJ knife. Reproductions of this rare bayonet  have been made for many years.
Original examples of the bayonet  have late white metal hilts which have been nickel-plated. Since the  bayonet was not authorized until 1943, early steel-hilted examples  should be viewed with suspicion. Examples which evidence removed rivets  or surface-mounted insignia should also arouse suspicion. The blades on  observed original examples all have wide fullers (on both 20cm and 25cm  blades) and no maker markings. The scabbard is black-painted steel, as  normally found on all KS 98s. The bayonet was worn in a black leather  frog and had a Portepee attached in the old Imperial manner, by  threading it through the belt. The Portepee has a black leather strap  with three aluminum stripes. The slide is black leather and the stem,  crown, and ball are aluminum. The insert of this generic 
knot is black.
Source: 
German Militaria Blog
There is also a scan from the page in the book.
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