Release date for this couldn't have been December 1971, as Atlantic didn't move to Kinney in the UK until March 1972, as reported in Billboard dated 12th February 1972.
I have the Polydor version with orange and purple labels.
The sleeve has a red and white sticker over the Polydor info giving the K 50009 catalogue number however! The last photo looks as if the sticker is missing.
I would expect them to use up the sleeves for the new Kinney issue but seems odd the album contained is the Polydor version.
I can only guess the album was pressed as a Polydor release then Atlantic became part of the Kinney group at the time of sale.
Added all scans gatefold, booklet & labels. This pressing is a transitional one during the move from Polydor to Kinney. This copy is the 2nd transitional version. The first one had all the attributes of a Polydor pressing but the Cat No inside the gatefold was stickered with a Kinney Cat no and the spine also retained the Polydor number. This is also when the label design changed from Red / Plum to Bright Green / Brown - Brick Red. The second version is the same except all the sleeves carried the proper Kinney Cat No's and no stickers, the brick/brown colour is a shade lighter. Both transitional versions kept the old Polydor Cat No's in the Deadwax of the albums. After this came the now standard Green & Orange Labels with all the Kinney sleeve & disc catalogue numbers matching up and the Polydor number removed from the deadwax