Items
Creator is exactly
Thropp, Frank Wilkes
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[E1656BW], Letter from Eureka Flint and Spar Co, Frank Wilkes Thropp to William Henry Meadowcroft, February 26th, 1916 1916-02-26 -
[E1656CB], Letter from Eureka Flint and Spar Co, Frank Wilkes Thropp to Thomas Alva Edison, February 29th, 1916 1916-02-29