This version is probably the first issue. Pink labels with "Made In England" text curved with thick lettering compared to which has text in a straight line with thin lettering.
No alternative sleeve versions are known to exist.
A5: Bob And Earl on labels and front sleeve, "Earl Nelson & Bob Relf" on rear sleeve.
B5: Shirley Lee on labels, Shirley & Lee on rear sleeve.
Label and spine cat# = IWP-3
Sleeve cat# = IWP 3