Semaphore switch knob for 1950-55 barndoor VW microbus. This is the plastic knob on the dash for the semaphore switch turn signals. Not threaded, but sized for m3 X 0.5mm pitch actuator rod from the switch. Might fit later buses with semaphores, not sure. Should be Black for commercial buses, ivory for deluxes. Includes STL file and Freecad fcad file if you want to improve it. Photo courtesy of Everett Barnes from thesamba.com http://www.thesamba.com/vw/forum/album_page.php?pic_id=195233Designed in Freecad using a digital caliper from an original from a 1955 VW bus.