It's a 1915 and something about it seems off to me - like a reprint. Knowing that these are very thin, hard to see it staying up so rigid in the easel like that. Card stock just looks thicker to me - or perhaps that's that caramel residue. Looks more like it was soaked too many times.
http://www.ebay.com/itm/ZACH-ZACKARY...YAAOSw9r1V-pzc