Bob Dillon wrote: ↑04 Mar 2019 22:33Exception would be a pantograph system, which sounds a little like what you are trying to describe. Pantograph systems weren't employed that much overall, except for dubbing purposes in the very early cylinder era, before the invention of master molds to mass produce cylinders. And again by Edison in the late cylinder era (post 1914 or so) to dub Blue Amberol cylinders from Diamond Discs, the Diamond Disc by that time being the dominant format produced by Edison.
I shouldn't have said that Edison Blue Amberol cylinders were pantographed, they were dubbed acoustically. I guess I had a little fog from too much blathering / typing.