I Don't Know Why. "MGM's Faithful in My Fashion" starring Donna Reed & Tom Drake (sheet music). Words by Roy Turk, Music by Fred E. Ahlert, Leo Feist Inc., New York, 1946.
 
Movie Sheet Music - Standard Size
Vintage from the 1940s

Very nice condition with owner name and mild cover wear. 12 x 9 with 3 pages.