I have been told about that book the only problem is that only place i can find it for less than 300 dollars. That is assuming that you are talking about your book. and I checked collector grade's website and the book was not listed.
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Just checked Collector Grade's website. The Sten Machine Carbine isn't listed.
Peter - is a 2nd edition a possibility?
$300 isn't bad compared to Peter's Lanchester, Patchett, Sterling book, The Guns Of Dagenham.
lyon13 - there is a long thread about making semi auto Stens in the Gunsmithing sub-forum.
And I have a copy of The Guns of Dagenham as well. Bought them as outstanding reference material - turns out they were an investment opportunity as well.