This is another New Model of the same design and quality as the one described on the previous page, but the well-known Barr and Stroud sleeve valve engine is substituted for the Super J. A. P. with poppet valves. The comparative simplicity of the sleeve valve type being preferred by some riders, we have introduced this model to meet their requirements. Full particulars of this engine sent on application.
Adapted from a document scanned by lathes.co.uk