'Twist with Bobby Darin' was originally released with the white sleeve whose picture I've uploaded, but at some point this sleeve was replaced with a black one. The original pressing used the yellow harp labels, and the album was later released with the bicolour label (yellow / blue for mono records, purple / brown for stereo records) while still using the white sleeve. The change to black seems to have happened later on.
Anyway, there are some variations that I have never seen, and I was wondering whether someone can confirm their existence (or non-existence).
1) A stereo record with a white sleeve (and any of the two labels). All white sleeves I've seen are for mono records.
2) Records (mono or stereo) with a yellow harp label and a black sleeve (not likely).
Lastly (although this is not so important to me), have you ever seen this record with any later Atco label?