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A Tilting helmet, used during the reign of Edward III.

Tilting Helmet

A Tilting helmet, used during the reign of Edward III.

"Diagram to illustrate crescentic offsetting of outcrops due to progressively increasing tilting of orographic blocks." -Walcott, 1901

Outcrop Diagram

"Diagram to illustrate crescentic offsetting of outcrops due to progressively increasing tilting of…