I attach below the scans of the back, I Le Bateleur and XI La Force for others' identification.
I have not checked through either the Encyclopedia nor through DePaulis's book yet, but thought I'd rather brashly post my impressions.
Of course, looking at a few other cards would help enormously - especially such that contain usual indicators: such as the 2 Deniers/Coins, 2 Cups, and VII Le Chariot and a few others to check for influences from regions or other artists.
Based on the apparent quality and imprint, I suggest a probably mid 1800s print from a woodcut made in either Lyon or Avignon areas (I am being brash here, and will very likely be shown to be inaccurate with further descriptions or scans). I base this simply and solely on the depiction on the right-hand side of the table of the Bateleur: it is definitely not a bag, but rather what appears to be half-way between book and box.
The 'Lion' of La Force displays likewise some characteristics reminiscent of further-north-than-Marseille influence.
As to what they are worth, this is a far more difficult question, as it does partly depend on dating, but also on assumptions about the completeness of the deck and quality of all cards (I presume the deck has its full 78 cards, and that each is roughly of the depicted quality).
If such is the case, and if the woodblock dates from the 18th century, with the imprint from the 19th, I
suggest a value (partly based on the price of a few recent sales on e.bay) between US $500 and AU $1000 - probably edging towards the latter.
As the deck does not appear to be either a Conver nor Dodal, I would be very interested in seeing who it stems from (the 2 Deniers/Coins will probably reveal this).
Looking forward to further seeing bits and pieces of this deck... actually, I wouldn't mind obtaining it for... errrr.... better identification purposes... it may take a few years.... or decades. Let me know, and I'll send you my postal address
