Here's a suggestion or two
..the term paper might state,
"For his time, Oswald Wirth spent most of his adult years trying to refine his early Marseilles-based experiment and also encode what he learned of esoteric teachings from his circle in the 22 majors.
The link Fulgour gave you was one version of Oswald Wirth's tarot and its a very pretty one. It's probably the correct one and only has 22 plates.
Here's a link to a discussion of someone who found a copy of the pretty one, probably an antique version:
http://www.tarotforum.net/showthread.php?t=31751&page=1
The one many Americans get look like the one below:
http://www.learntarot.com/osdesc.htm
Or some Europeans not able to get the pretty version available in France or Quebec, they also have to get this same one:
http://www.trigono.com/tarots/TA02TAOW.htm
I haven't been able to buy the correct and pretty 22 majors version! But when I do, I would pop into Marseilles variations and see what one would be good to compare it with. I like odd Marseilles variations though, my only one that seems to agree with Marseilles fans here seems to be the one that you can get at discount (the book that comes with the set is not historical, it's based on the authors reading style. The cards are what the historical Marseilles fans say is okay):
http://www.tarotpassages.com/TarotSet-mf.htm
You have a great theme of just working with a French Marseilles and these online images of an Oswald Wirth deck to check the design differences with your symbolic dictionary. I might suggest that Mary Katherine Greer had once called the Marseilles-Milanese historical decks as "The Continental Tarots" as a regional outgrowth, as opposed to the "English School" which includes "Golden Dawn Occult" decks.
I am guessing you might truly enjoy focusing on the strengths of the Continental Tarots designs and Oswald Wirth's variations.
I don't know if I could discredit the "Thoth-Hermes" decks of the twentieth or twenti-first century in the long run or in my own opinion-- because I believe the strength of the design variations in the minors led to a brilliant revival of interest in tarot as a whole.
My best wishes on your work, whatever form you choose to focus on. My opinions might not be helpful--I am hoping my suggestions might be.
Cerulean