Okay, let's try this - a super rare 10-inch privately pressed record boldly titled: PREVIEW. Then the following description: This is a recorded preview, made in a limited edition for private use only, of six of the songs from Rodgers and Hammerstein's "Cinderella," starring Julie Andrews. "Cinderella," a ninety-minute original with music by Richard Rodgers, book and lyrics by Oscar Hammerstein, II, will be broadcast in color on Sunday, March 31, 1957, 8:00 to 9:30 P.M. EST. over the CBS Television Network. This recording, featuring Julie Andrews with Richard Rodgers at the piano, is not for sale, cannot be used for broadcast purposes, and is in every sense of the word a collector's item.
I've never seen any other copies of this in all my years of my collecting. Record seems to be in excellent shape. As rare as hen's teeth. If interested, PM me here.