Yule quarry - crane and power house facilities of the Yule Marble Co. near the head of Yule Creek, south of Marble, Colorado
[between 1913 and 1917]
A good illustration of the use of tin cans and pressure cookers on a small canning unit
[between 1940 and 1950?]
Ribbons of gold under slanting ribbons of sunshine, the metamorphosis of steel wire is completed
[between 1950 and 1970?]