There are two things to point out.
1. there is a white sticker on that ebay pictured machine that i dont think belongs there. The union jack on the left bottom corner shows position of white sticker.
perhaps on the ebay machine it is a repair cover or ?
2. that is the later union jack used in later production run pictured on ebay (first picture below).
Here is the proto-type union jack with the different playfield graphics (second picture below) There are alot of differences between the early and later runs.
Note - if u click on the below link, it will show the below picture in much larger form and it will clearly show the big differences.
Study to see how many changes there are. Playfields are clearly totally different. The early one looks better i reckon . ?
http://www.ipdb.org/showpic.pl?id=2579&picno=39949&zoom=1cheers.
