if ya got the choice of all three, imo take top right. as boba say's probs all original, as to which came off the press first, dunno, just shows with a distributor like Atco, they gonna have a run or two! Got a demo of the bottom press, which if it was mint Id say go for that one, just coz it's vinyl
btw I think rel date was '68. with the top right on plastic. you'd probs find it was pressed at Monarch and would have a delta number that would give you the actual pressing date.
hth... probs not as i confuse meself!
steve