Hello MMD.  As I sort through my large collection of 65-note rolls,
I occasionally come across a roll that has had the little wooden boss
on the outside of the right-hand spool end sawn off.  I think this is
a roll that has been adapted to play on a Simplex player.

Why?  Because a few of the rolls in this collection were Simplex rolls
(I've since sold them.)  When I tried playing them I found that the
entire roll was displaced about an eighth of an inch to the right,
compared to an ordinary 65-note roll.  After a certain amount of
fiddling about it was possible to play them, but it wasn't worth the
effort.

I make my mutilated rolls playable again by slipping two eighth-inch
slices of neoprene tubing over the right-hand winged pin, choosing
tubing diameters that fit one inside the other, with a snug fit on the
pin.

I guess that if a Simplex owner is desperate enough he or she could try
pulling out the RH pin of a 65-note roll, sawing off the spool end boss
and then replacing the pin.  This idea doesn't really appeal to me,
I must say.

John Phillips in Hobart, Tasmania