This is an original 1890's era Game of Yellowstone (National Park) playing cards deck. The deck contains 52 cards; the back of each one displays the image of a buffalo, along with the Great Falls and yellow flowers. The front of each shows a different scenic point in the park, including Old Faithful, Liberty Cap, Angel Terrace, Hayden Valley, etc. The cards are marked A1-13, B1-13, C1-13, D1-13. The cards are in good overall condition. They measure 2.5" x 3.5".