No. 88 A-D Rule of Vs teaching set with tray

Last known location: Geneseo, NY

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Set of four (A, B, C, D) wooden blocks that feature stratified sequences of features a stratified sequence of cherry, green poplar, purpleheart, and maple. Strata in block A are dipping steeply down a narrow valley. Strata in Block B are dipping shallowly down a broad valley. Strata in Block C are dipping shallowly up a narrow valley. Strata in Block D are dipping steeply up two broad valleys and cut by a vertical dike of black walnut. The base of each of the four blocks measures roughly 2 1/2 by 1 1/2 inches. This teaching set comes with it’s own tray of lovely green poplar. The set is finished with Tried & True┬« linseed oil and beeswax.

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