Taking my palitoy 45b knowledge here and applying to ESB German cards where the same process/bubbles were used in Coalville.
Most of Tonis German unused cards were with the english text, but some of the figures had cards without the text.
For Han Bespin, the cards Toni had are without text as the majority of minty cards out there are of this type. Toni had 162 of these cards.
You can tell from a front only shot as with text has a v shape on the punch, whereas without is rounded.
Bubbles should either be double stemmed:-
The fact that this bubble has yellowed would indicate its genuine as Tonis are always clear.
Or bubbles should be single stemmed with an 0N number in the bottom right hand corner:-
You can just about make out the leading 0 on that example.
Your bubble has no number on it like this example taken from Toni's website:-
Also, your bubble show signs of lifting and air pockets, and signs of iron/heat damage to the bubble on the right hand edge.
So all in I would say it was a Toni.
Not sure about that double dots thing. Do you know where it was said that meant it was genuine? Those dots could have been
put there during the bubble manufacturing process in my opinion.
Let me know what you think.
cheers Jason