We have 6 rolls of Combinola Novelties, Nos. 1, 2, 3, 4., 5, 6,
manufactured by Geo. P. Bent Co. Chicago.  Very early style roll, each
has about five songs.  They have lever control marks on them for right
and left.

Question: What do they play on, and what is the approximate value
of the 6 roll set?  All rolls and boxes are in excellent condition.
Appreciate any help you can give.

Thank You  Bob Lloyd