Thank you, John Wolff, for looking into the White Spirit nomenclature.
I had obtained the 'phone number for Esso Technical enqiries and was
going to pester them this morning, but fortunately I read the Digest
first.  Perhaps we can lay the subject's, er, 'spirit' to rest?

So how about we discuss gummed paper instead?  This is also found on
piano rolls sometimes.  About 12 months ago there was a short article in
the British Player Piano Group Bulletin by one of the foremost
reproducing roll collectors in the UK.  He said that if he finds a
Duo-Art roll which has had gummed paper stuck all along the edges, he
dumps the whole roll into a bath of warm water, peels off the gummed
paper and dries the roll on an airing rack.  It sounds like a pretty
heroic solution but he was adamant that it works, and he's been
collecting rolls since the late 40's, I believe.

So does anybody else have any experience with this problem?  I'm asking
because I recently found a Duo-Art roll with all the treble snakebites
covered by gummed paper and I'd like to fix it.

John Phillips.