Hello after further communication with Scotford Lawrence of the national cycle musuem he is confident to state that the rod brake linkage is original to a 1934/35 bike and especially as I had informed him that the bike and mudguards had a dark green coachline applied but that the wheels with there hub brakes were from a later bike. This confirms what choteau stated later fitting of wheels, Thanks Tim, and the dating of the front hub by hilarystone to 1939. Now if only PERRY MASON, COLUMBO,and good old 10 4 BRODERICK CRAWFORD could chip in I am sure this case Sorry bike could be solved. Cheers John