Linley co was a contractor who made magazines for the peddle scheme rifles. They would later go on to make the 20 round trench magazines for the Smles. Before the war and during it they made "American style" lamps, which the would continue producing after the war before being bought out in the 1920s I believe. They have always been an interesting contractor in my mind, mostly for the trench magazines, but I don't believe there is any premium placed on them over any other maker. Hope this is helpful, and there is a chance I got some of the details wrong, working from memory here.