Two of the albums I picked up last weekend caused me a bit confusion, as I didn't purchase any duplicate albums, and yet when I got home I found that I had two identical looking copies of "From Walt Disney's FANTASIA, The Pastoral Symphony". I then then realized that although the albums had the same music on side one and two, the cover of one had "Night on Bald Mountain" on the front and "The Pastoral Symphony" on the reverse. The centre of the record is red. The other album has "The Pastoral Symphony" on side one and the reverse has text talking about conductor Leopold Stokowski and the Philadelphia Orchestra, as well as notes about the three songs on the album; The Pastoral Symphony", "Night on Bald Mountain", and "Ave Maria". The centre of this album is grey.
The Golden Age of Walt Disney Records 1933–1988 book pointed out that the "Pastoral" only cover with back cover folded flap with text is the mono version(WDL-4101C), and the version with "Night" front and "Pastoral" back cover is the stereo version (STER-4101C). I'm not sure why both of mine are WDL 4101C.
The only date to be seen is on the album with the text back cover which says "1961 Walt Disney Productions".