Polished Corvettite - SOLD 0.910" Piece Eurypterid Aquia Creek sandstone was used

Aquia Creek sandstone was used as a replacement at first

which is a cross-section of a steel support anchor for the mullion

this is the first set of Twain words encapsulated by Beckett they've ever offered for sale

Also known as corundum

Known as nacre

Polished Corvettite - SOLD 0.910" Piece Eurypterid Aquia Creek sandstone was usedDuring the post war Golden Age of Automobiles, factory workers from several different manufacturers discovered something curious. During the painting process, layers upon layers of automobile paint would accumulate into a layered and beautiful material. When heated and polished, this man made "motor agate" reveals the colors of the cars that once passed through these factories. This specimen is a piece of Motor Agate called Corvettite, as it was