very good, thanks for that Vic. yes it is supposed to work as you describe, but i think this is a different design in your picture . it does not have the coil springs, but instead has bigger leave spring type springs . I actually have another headlight, probably from a '36 or '37 (maybe from a car) that uses the coils, there is a little bracket that comes through, as well as a screw, (the black one) the '38 (green one) just has a screw hole. it was converted to sealed beam at some point unfortunately, so most original hardware is missing. what I can't figure out is what the screw went against, or into, to keep the lens from being pushed in.