I have recently acquired what I believe is a Martini Enfield 22" bayonet. Having looked online at various bayonets for sale I have seen some described as "English" and some as having Egyptian, Arabic or Turkish markings. There are some notable differences in mine compared to those advertised. The main one being that the blackened metal on the socket continues for about 15mm up the blade. Also, mine has a cut out on the socket where it fits to the rifle. I've seen this on one of the other examples but most have a continuous, elongated ring of metal through which the barrel is placed.
How can I tell the origin (and perhaps authenticity) of my bayonet? There are hardly any clear markings on it apart from an etched "b13" (or possibly "613") on the blackened section of the blade.
Any experts out there with any thoughts?