gotta love the ebay..
well, it looks genuine to me..that is, once you get past the 2nd rate, shit quality photo documentation. chuck and i saw a ton of these postcards at last year's dieter roth retrospective in new york. archiving's a challenge since both sides are desirable. if i remember right, the curators floated the postcards in a giant glass sandwich case, so you could see both sides. pretty smart..