Vic Marsilio asked about "O" Rolls [MMD 980813].  Try:

  Paul Gottschalk
  Gottschalk Music Company
  208 South First Street
  Champaign, IL 61820-4120
  phone/fax (217) 351-1099

He has rolls for several different types of nickelodeons -- A, G, 4X, O,
Pianino and Style 125 and 165 Band Organ rolls -- listed on the back of
his order form.  He sent an "A" roll catalog with my copy of the new
Slottime "A" roll.  Ask for a catalog and see what he has.

Jack M. Conway