I have made some progress on this topic but not as much as I wanted because I haven’t had much time unfortunately. With the pattern I made I tried to figure out the position of the foil and then I have been checking multiple screenshots I have from cards if it fits or not. Three of these versions have a nice double swirl, one has that double globe and I have found other types but those do not have a nice and full double swirl possible in the artwork. I’m sure there will be more but I will need to find better examples online first and that’s allot of work. 
I have added pictures here of the swirl versions I have at the moment (thanks to everyone helping here in the thread) but I do intend of making some sort of summary but now I’m still at the stage of adding data to the research. I hope these examples I made are clear and easy to understand. If not, let me know and I will improve on it. 
(oh yeh, this Magikarp picture is a older version of me making these examples, that’s why the way I’m explaining is a bit different)
I do feel like I’m getting closer to a eureka moment because I have been checking some sheets and seen certain locations that might prove these overlapping “weld lines”/ “print lines”. So yeah, I’m progressing bit by bit.
