Replica, unfortunately. These were manufactured in large scale and sold in the late 70's early 80's. One easy way to tell is the centre of the "O". It is quite round in the replica, where the original had straight sides, and looked more like a square with rounded corners.

Also the centre of the "R" and "P" look very similar on these fakes, and quite different on an original.

I don't have a photo to hand, but will post one later, if someone hasn't already done so, for reference.

David!