Bill Sharkey asked about a Simplex player piano.  A Simplex player
piano is (these days) quite a rarity.  Simplex rolls have a slightly
different drive lug from a standard 65-note piano roll and the rolls,
though perforated at the standard 6-per-inch, are 11-1/8 inches wide
as opposed to the standard 11-1/4 inches for standard piano rolls.
The rolls were invariably made at the Meridan Aeolian factory.

Rolls for the Simplex do turn up quite regularly, often in lots of
standard 65-note rolls.  The roll drive gear is the same as that used
in the Simplex push-up.  Essentially the player piano described is
an upright with the push-up mechanism adapted to fit.  Most companies
adopted similar practices in the early years of internal players.
I would venture that the age is somewhere around the 1905 mark.

As to value it is not worth a great deal of money as there is not
a great deal of interest in (a) early players and (b) 65-note
instruments.  Personally, I think it is a great shame that enthusiasts
still shun 65-note players to a degree.  Many folk still want to
convert these to play 88-note rolls.

A good 65-noter gives very good musical results and there is little
music which genuinely suffers as a consequence of the attenuated scale
compass.  The are plenty of 65-note rolls available in the US and in
the UK they were made until the late 1930s with all the dance music of
that era being available.  There are so few early internal players left
in their original 65-note condition I would suggest that this Moore and
Moore Simplex is definitely worth preserving.

On related note, here is news of an instrument facing an uncertain
future due to a lack of music with the instrument.  It is a scenario
I have encountered time and time again, namely, that of an owner
considering disposing of an instrument for lack of rolls.  How many of
us have a few odd rolls, even Simplex rolls, languishing on our shelves
as a one-off curiosity.  If you have rare or unusual rolls you have no
possible use for, I encourage you to pass them on or offer them for
sale to those, such as Mr. Sharkey, who can put them to good use and
ensure than an instrument worthy of saving gets saved.

Sincerely
Adam Ramet