These were a very short lived Moulding plane that made either an external ‘V’ shape or an internal ‘V’ shape. Why you would want to use this plane is beyond me. Maybe a precursor to wood panelling installation?
I first see them in the 1909 catalogue listed as Centre V #3011 and Reverse V #3011.1/2. By 1921 only the #3011 is listed and neither are shown in 1928.
I have never seen one , but I do have a 3011 made by another maker.