The Sparto was made in England... for what make or model? Was it ever a stock piece of equipment? I always figured '50s or maybe earlier.
And what about the lens...glass or plastic....flat cup or domed...with a metal door or collar? Did it require the use of a gasket on the fender?
Has anyone researched this at any time?
I have seen pages of an early Superior catalog with references to replacement lens, I think.
I have asked a few folks but never learned anything substantive.
Hurtn, for sure