Harry Schlund was the works manager of the Knoch Gun Works, a firm that rose from William Tranter's factory after he retired. Harry kind of inherited the business from George Kynoch and it became the Aston Arms Company. Schlund invented this revolver and it went through a few iterations, had some Tranter features, but others were his own, and was a solid, if odd, revolver.
The Schlund Revolver, image from Adams Guns
The pistol was free of obstructions and could be carried in a pocket, and produced without snagging on clothing. It had a sturdy break open action and would discharge empty casings like a Webley. The trigger was the difference, and it had a double action trigger of sorts. The lower part cocked the hammer, which could then be de-cocked, and the upper released the sear, firing the revolver. To be double action, both triggers have to be pulled at once. Only about 600 were made before Schlund went out of business, and these revolvers bring around three grand today. They can be found in many calibers, but this one is in .476. This revolver is available at Adam's Guns.