It's from a collection called "The Worlds Greatest Piano Arrangements" published by Warner Bros. Publicatons. Great little arrangements by the likes of Hines, Shearing, Garner, Tatum, "Fats" Waller, Mary Lou Wiliiams. Ellington, etc. Lots of little "gems." Some of them are so well written, a good Classical pianist can really "go to town" and take them to the expressive limits.