Doesn't sound like an original pressing. Is it in Mono or Stereo? It's far more likely to be an older pressing if it's in Mono (although there were also later mono pressings in the 80s, and the 2nd edition was also in Mono as well as stereo).
If it is an original it'll have yellow "Parlophone" writing on the label, the "all rights of the manufacturer" message around the outside of the label will start with "The Gramaphone Co. Ltd" and has a "Sold in the UK" statement on the left hand side of the label underneath the yellow "Parlophone" lettering.
Mine is an original mono pressing (although not the earliest version). Mine holds a value of around $200-300 I believe. If it's an original pressing in Mono and says "Dr Robert" on the label (like mine), then it's quite valuable, if it says "Doctor Robert" instead, than it's about half the value. If it has "XEX 606-1" etched into the vinyl just underneath the label on side 2, then it's extremely valuable (about $800).
Gosh, that was convoluted.