Huck
I looked for "Chez Deroy", possibly the man, who helped Saint-Sauveur as a creditor. According Depaulis Deroy had died in 1801.
I found an announce about a card game (jeu des cartes historiques), 30th November 1797, in a magazine called "La Clef du Cabinet des Souverains" (No. 315).
https://books.google.de/books?id=rexBAAAAcAAJ&pg=PA2918#v=onepage&q&f=false
The oldest "chez Deroy", that I found, was from 1794. Deroy worked also with other authors, but Grasset Saint-Sauveur seems to have had by far the most productions with him.
************
I searched for this "jeu des cartes historique". There are various books at books.google.com reacting on this, and they contain the name "Vanackere" (as in the advertisement; not available at books.google.com). I found the deck in our museum ...
The style was imitated later ... I found this advertisement for an old "Jeu de Cartes Geographiques".
http://www.abebooks.com/Jeu-Cartes-Geographiques-JOUY-E-Vanackere/15400278395/bd
Another imitation ...
http://www.livresanciens.eu/shop/anciens/9588.html
This page knows 4 of them ...
http://www.hjalmar.fr/gal54.htm
The "E.J" in the Deroy advertisement should be E. Joyu (as noted in the Museum text), not in c. 1805, but already in 1797.
***********
In a text of 1842 I found this advertisement:
Franchises, lois et coutumes de la ville de Lille. Ancien manuscrit publie par Brun-Lavainne. - Lille, Vanackere 1842
..... Roisin
Vanackere, 1842
... at p. II
Then there seem to have existed already 7 of them.
I found an announce about a card game (jeu des cartes historiques), 30th November 1797, in a magazine called "La Clef du Cabinet des Souverains" (No. 315).
https://books.google.de/books?id=rexBAAAAcAAJ&pg=PA2918#v=onepage&q&f=false


The oldest "chez Deroy", that I found, was from 1794. Deroy worked also with other authors, but Grasset Saint-Sauveur seems to have had by far the most productions with him.
************
I searched for this "jeu des cartes historique". There are various books at books.google.com reacting on this, and they contain the name "Vanackere" (as in the advertisement; not available at books.google.com). I found the deck in our museum ...

http://a.trionfi.eu/WWPCM/decks14/d12199/d12199.htmWWPCM12199
deck "Cartes Historiques. Histoire Romaine" (France)
different printers: Vanackere (Lille), 1760-1790; E.Joyu, c.1805; Nikolle (Paris); Crapelet (Paris)
48 cards; back blanc; dimension 63x109 mm; lit.: Cary Fra 306; Fournier Fra 91
The style was imitated later ... I found this advertisement for an old "Jeu de Cartes Geographiques".
http://www.abebooks.com/Jeu-Cartes-Geographiques-JOUY-E-Vanackere/15400278395/bd
Another imitation ...
http://www.livresanciens.eu/shop/anciens/9588.html
This page knows 4 of them ...
http://www.hjalmar.fr/gal54.htm
The "E.J" in the Deroy advertisement should be E. Joyu (as noted in the Museum text), not in c. 1805, but already in 1797.
***********
In a text of 1842 I found this advertisement:

Franchises, lois et coutumes de la ville de Lille. Ancien manuscrit publie par Brun-Lavainne. - Lille, Vanackere 1842
..... Roisin
Vanackere, 1842
... at p. II
Then there seem to have existed already 7 of them.