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  • Old Series Trademark No. 2899
    Old Series Trademark No. 2899

    Amazon Spiral Packing

    Date: 1897

  • McCarthy Album 09, Photograph 049
    McCarthy Album 09, Photograph 049

    Caption: "Dragons Mouth - Yellowstone Park," c. 1923. This hot spring originates deep underground. Rising gas and steam create pressure bubbles within the mud of the cavern. When they burst against the cave roof, they emit a growling, booming sound. Steam also drifts from the cavern entrance, creating the illusion of smoke from a dragon's mouth.

    Date: 1923