No. 25 Opposing valleys cut by reverse fault and dike

Last known location: Glen Ellyn, IL

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This wooden block features a stratified sequence of poplar, beech, movingui, mahogany, purple heart, maple, and Brazilian cherry that are cut by a reverse fault and a vertical dike of black walnut. The base of the block measures roughly 4 1/2 by 3 1/2 inch

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