Manhattan Project Shield Window Fragment - SOLD 124g mammothteeth This specimen is an Ordovician

This specimen is an Ordovician Petraster Starfish

including rings

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It comes from Morocco and is dated to be around 390 million years old

though they were often mistaken for fish

Manhattan Project Shield Window Fragment - SOLD 124g mammothteeth This specimen is an OrdovicianThis specimen is a 124 gram fragment of a leaded glass shield window installed in the T Plant (221 T) Plutonium Recovery Building, the first and largest of two production bismuth phosphate chemical separations plants used to extract plutonium from fuel rods irradiated in the Hanford Sites reactors. The Plutonium produced here was used in both the Trinity test on July 16, 1945, and in the "Fat Man" atomic bomb used over Nagasaki, Japan on August 9,