One of the hardest-to-find and most colorful Disney sheet music songs is this 1936 "Mickey Mouse's Birthday Party." The 12" by 9-1/8" six-page sheet was produced by the Irving Berlin, Inc., Co. There is some edge wear, minor creasing and a 1/2" tear on the back page, but no holes, stains or writing. The back cover has a colorful advertisement for the Mickey Mouse Silly Symphony Song Folio.