Originally Posted by
unworthy1
They sold the Magistroni cranks with no chainrings back in olden times, and you put the lighter ALLOY chainrings of your choice on them, so Simplex rings on those cranks could have been "as sold". At least it's not something that should lose you points in an imaginary Concours competition.

And those Simplex rings were the ring of choice for racer types - among the best available. That's why there were adaptors to fit them to different cranks.