As you can see, mine is the later press with "narrow band", boxed Decca logo labels in a non-flip-back sleeve.
Mine also has the "small" Decca labels, which, as has been discovered with Decca pressed vinyl for non-classical releases, places this press somewhere around the early 70s, as Decca had a brief fad of applying "small" labels to the discs around this time...
,,,small labels are ones where the raised central area of the disc which should accommodate the label is larger than the labels applied... that is, the labels are smaller than the vinyl area provided for them, so a good 5mm of label area of the vinyl itself projects out all around the label (The labels themselves are almost 45rpm disc size, applied to an album disc).
Also of note, is the Decca logo on the front cover, which is, for want of a better expression: pissed.
...I've looked around at other copies of this online, and it's the same on every copy, even the early, and first press sleeves (so it was wonky at the design stage).
((Finally, the earliest Decca SXLs have a deep groove in the label a few mil in from the edge (ED 1)))