Here's what Kaplan Vol. 1 has to say about a 1976 edition:
"D'Epinal Tarot: Reprint of Tarot d'Epinal, one of the popular catchpenny tarot packs originally published in France by Pellerin during the 19th century. As the word "catchpenny" implies, these packs were inexpensively printed for popular distribution. This reprint was completed in 1976 by Arts et Lettres, France. Some of the Major Arcana deviate from traditional designs."
Among the differences Kaplan notes:
Fool - small beard.
Magician - plumed hat.
Empress & Emperor - unnumbered (it looks like they're numbered on the Grimaud edition)
Justice - next to a tablet entitled "Lois" (laws)
And there's an extra card called "Le Consultant" (don't know if the Grimaud has this) (oops, edited to add, it does have it, I should have read gregory's post more carefully)
Also I noticed some unusual French titles:
Magician - Escamoteur
Hermit - Le Capucin
I like tarot decks which are in some way reminiscent of playing cards, and the "popular" and somewhat lowbrow art style of these cards does that for me. It also reminds me a bit of the later Thomson-Leng deck from the 1930s, which I'll never be able to afford to buy. So I'll console myself with the Epinal.
Something I didn't know -- Epinal is a city in France, a former center of the print industry, according to Wikipedia.
-- Lee