“Start of super heating union”
Inventor Charles S.L. Baker and unidentified man standing behind heating (radiator) system. One man is holding a knob that is attached to two wires.
St. Louis, Missouri, ca. 1906
Library of Congress Prints and Photographs Division

“Start of super heating union”

Inventor Charles S.L. Baker and unidentified man standing behind heating (radiator) system. One man is holding a knob that is attached to two wires.

St. Louis, Missouri, ca. 1906

Library of Congress Prints and Photographs Division