The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Old Faithful Geyser and Inn. Yellowstone National Park. Wyoming. Mike Roberts. The Continental Card
Wyoming. They Grow Em Big in Yellowstone National Park. D. and G. Enterprises. Art Dexter. 1966
Wyoming. Old Faithfull Geyser. In Yellowstone National Park. D. and G. Enterprises. Dexter Press. Laura Dexter
Steam Boat Geyser at Norris in Yellowstone National Park. D. and G. Enterprise. Robert Whitney. PM. Laramie. WY. 1966
Old Faithful Geyser. Yellowstone National Park. Intermountain Tourist Supply. Mike Roberts
Wyoming. Old Faithful Geyser. In Yellowstone. National Park. T. W. A. Services. Mike Roberts. The Continental Card
Wyoming. Old Faithful Geyser in Yellowstone National Park. TWA Services. Mike Roberts
Wyoming. Midway Geyser Basin in Yellowstone National Park. TWA Services. James Blank