File:P.Köln XI 429.jpg - Wikipedia

Cologne - Wikipedia

Cologne - Wikipedia

Cologne - Wikipedia

Phlogopite: Mineral information, data and localities.

This 429 million-year-old trilobite eye is similar to those of modern insects

The Cheops Pyramid, Giza

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July 2012 New Acquisitions - The Wayfarer's Bookshop

This 429 million-year-old trilobite eye is similar to those of modern insects