Hi Piotr,  The roll of "Three Little Fishes" sent to the MMD is QRS
7014 _and_ Q-238.  When QRS started to issue the "Q Series" of rolls,
they made no change to the actual roll.  Since it is new paper, you
can be sure that it would be have a stamp on the roll which said Q-238.

It is certainly not Liberace, for his style of playing is much more
elaborate, and also there would be a celebrity leader at the beginning
of the roll, which would show yellow through the paper on the take-up
spool.  Hope this helps.

Mike Walter - QRS Employee (Part time)
Buffalo, New York