I can't tell you who the maker is Dave as I do not have one of these in my collection. I believe there is nothing wrong with it, but as Nick said, wait for fischer.
Searching for anything relating to, Anton Boos, 934 Stamm. Kp. Pz. Erz. Abt. 7, 3 Kompanie, Panzer-Regiment 2, 16th Panzer-Division (My father)
This one is an original example in nice condition and is still an unknown maker. Suggesting a link to the Souval firm as Hunter states is pretty close.
This one is referred to by collectors as the "Vienna Design" variant and there are four different hardware set ups that have this same obverse design. All have the same shallow rifle cut out on the reverse as well. This one is the block hinge variant.
The Vienna or Wien family of IAB's includes the following;
Grossman & Co.
Vienna Design - Shallow cut
Vienna Design - Deep cut
The obverse design of all of these are very close in detail. Because of this and the location of the maker marked examples, this tends to lead to the conclusion that the unmarked examples more than likely came from the same area.
Because there are subtle differences in the obverse designs, one cannot definitely conclude which manufacturer actually produced the unmarked examples.
Congrats on a very nice IAB...
Best Regards, fischer
How are you mate,well I hope.
Thank you very much for your reply.Sorry I hav'nt posted earlier but my computer connection is down at the moment.Posting from work(which is forbidden).
Thanks again for your time mate.
Thanks to all who have posted.
All the best