I saw the note from Debbie Legg about the Artrio that she is undertaking.
I have been in contact with David Krall, (219) 932-2322, for about
3 years.  Dave has a couple of Artrio reproducers as well as a severe
collection of rolls (perhaps with some duplicates). He is quite
knowledgeable about the mechanism. A call to Dave is always
illuminating.  Alas, he's not on the net.