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Artifacts 11

Every copy this mystery rests on, each with its own key and its distance from the original.

Photo1 step from object
J.L. Bongers and C. Stanish · CC BY 4.0
Photo2 steps from object
J.L. Bongers · CC BY 4.0
Photo1 step from object
Robert Shippee · AMNH Library negative 334709; reproduced courtesy of AMNH, not under the article licence
Photo1 step from object
J.L. Bongers and C. Stanish · CC BY 4.0
Photo2 steps from object
J.L. Bongers · CC BY 4.0