Here is an early twist on Seiss light 1936 1937 1938 for all models....you could use the the twist on bezel and everything else connected to it on your 1936 1937 1938 Seiss lights on a Schwinn top of the line auto-cycle 1936 to 1938....................this is in very good condition..............some pictures show you it mounted on some Torrington handlebars!!!