Mount Everest Ladder Rung mm2 Ellis and Strauss had a

Ellis and Strauss had a difficult falling out during the early stages of construction

This specimen is a polished slice of agatized coprolite or "dinosaur dung" from the Morrison Formation in Utah

the first African American woman in space

in the Bearpaw Formation

the condition will also vary as most have been worn over time

Mount Everest Ladder Rung mm2 Ellis and Strauss had aThis specimen is a precision cut segment of ladder rung from the Khumbu Glacier on Mount Everest, roughly 2mm thick. Diameter, shape, and condition vary widely. Diameters range from just under 1" (2. 5cm) to 1. 5" (3. 8cm). Some segments have significant crampon marks along the edges, while others are relatively clean. As shown, some segments have undergone tremendous stress. The specimen comes in a classic, glass topped riker display box measuring 4