I found an old advert for Mechanical Music Manufacturing Co., headed
by C. George Cooper, of Wichita, Kansas.  The ad is for an "O" roll
spool frame and some solo instruments.  The only info I could find
at MMD is that the company went out of business in the 1980s.  Would
anyone have any info on this company, i.e., years in business, etc.,
or anything about C. George Cooper?

Joe Montalbano