Items
Creator is exactly
Calkins and Holden
-
[E1115AA], Letter from Calkins and Holden to Leonard C McChesney, February 4th, 1911
1911-02-04 -
[E1115AB], Cost Estimate, Calkins and Holden, February 4th, 1911
1911-02-04 -
[E1401A], Letter from Calkins and Holden, Ralph Holden to Thomas Alva Edison, February 7th, 1914
1914-02-07