This is a set of two stereo lithographs from an unknown publisher. There is a mark on the back of the cards that looks like it's been rubber stamped. As always, if you can give us more information on these pieces, we will reward you with a "finder's fee". This type of stereo card was produced from about 1900 through 1915. They are "false color" lithographs, but very high quality images. The first card is titled "73. Two Pair-Queens and Jacks". The second is "126 Lake Biwa Canal, Japan".