I have two original "Dirty Dogs of Paris" prints by the artist Boris O'Klein. Both of these prints are signed and titled in pencil, one is the print "Just Like Our Masters" and the other is "Waiting in Line." The titles as well as all other information is in French. In the top left corner each states the Copyright by O'Klein, then gives what appears to be his address, "28 rue des Grosses Eaux, Herblay" and finally "Set 0." The top right corner states that it is an "Eau forte originale." I have no idea what these prints may be worth and am extremely curious. Any one out there have an idea?

I am afraid this isn't an answer to your question, but an addendum to your original question... I found your question while looking for the same answer and would love to know the answer you get. I too have a print of "Comme nos madres" with the address and note of original on the top right corner... and a "Su viens....Beau blond!" without an address or note of original but both are signed in pencil. I wasn't sure if I should attach to your question or create my own since they were basically the same question. If you find out please let me know - they are of great value to me because they were my grandfathers that he purchase while in paris- but I would like to know the value otherwise

No answer here either, but we have 3 pencil titled and signed prints and one of them has been damaged and in need of replacement. The frame shop made the damage even worse. Same situation as far a sentiment, my husbands dad who is now 90 bought them in paris. The unsigned prints are going for $95 on one site and there are a few cheap ones on e-bay, but haven't looked carefully at those yet. It doesn't sound like there is any help out there yet, but we can all keep looking!