That's our best educated guess. Though we haven't found an exact match on the various databases such as
UKDFD, it's the best possible explanation of why it has the coat of arms of Paris on one side and the coat of arms of Britain on the other, and no other text or date.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis