This must be Stanley on his favourite KS3900 CS1 Norton
again. The pics come from a book "Stanley Woods - a short biography
", by W.F. McCleery". I cannot recommend the book but it contains a few photos worth reproducing. These photos were taken at a sand racing event at Portmarnock Strand, Dublin in 1931. The rider with number 20 is T.G. Byrne. Stanley's sidecar passenger is a mr Jim Cummins. The significance of these pics is that they confirm Stanley was still using his Moore-engined CS1 (number 22) in competition events in 1931; mr Byrne's Norton looks like a Carroll-CS1 to me.