150 years of electric horology : with references to the exhibit at the 1992 NAWCC national convention, Chicago, IL, July 1-4 /
One hundred fifty years of electric horology
edited by Elmer G. Crum and William F. Keller.
- [United States] : [Skokie, Ill.?] ; NAWCC Chapter 125 ; Midwest Electric Horology Group, c1992.
- vii, 101 p. : ill. ; 28 cm.
Includes bibliographical references.
93210203
Clocks and watches, Electric--History.--United States
TS543.U6 / A17 1992
Crum, Elmer G. Keller, William F.
Includes bibliographical references.
93210203
Clocks and watches, Electric--History.--United States
TS543.U6 / A17 1992
Crum, Elmer G. Keller, William F.