Barleywine
Thanks for the tip, I will probably take a look at this book in french (if available).
Else, yes to count up the flowers, buds, leaves and branches looks like an approach a bit far-fetched!
Something I forget to mention: apparently - according to someone here on the forum - Maxwell (or possibly the translator) used an antecedent to the Thunder Bay TdM, so his color references for the cards probably won't match any other deck you have.
http://www.tarotpassages.com/TarotSet-mf.htm