Signal Electric Manufacturing Company
1915 Broadway
Menominee, Mich.
Established 1892 Sig Elec Sig Elec Sig Elec 

Production Run 1928 - 1934
Base size      3" X 5"
     finish    Cherry Wood
Aquired        March 2ØØ1
View a Signal Electric Ad from a reprint of

How to Become an AMATEUR RADIO OPERATOR and secure a U.S. Government License - page 65
by Lieut Myron F, Eddy, U.S.Navy, Retired - Published by SHORTWAVE and TELEVISION in 1934
Reprint in 1991 by Lindsay Publications Inc. P.O. Box 12, Bradley, IL 6Ø915 - ISBN 1-55918-073-Ø
Sig Elec Sig Elec Sig Elec
Sig Elec Sig Elec Sig Elec
KOB w/buzzer 

Production Run 1928 - 1934
Base size      5" X 7"
     finish    Walnut
Aquired        April 2ØØ1
Central Scientific Central Scientific Central Scientific Central Scientific 

Production Run 1928 - 1934
Base size      3.25" X 5"
   finish      Wood Grain
Aquired        May 2ØØ1

CSE 26001 CSE 26001 CSE 26001
US Navy 

Model          CSE-26ØØ1
Production Run 1928 - 1934
Base size      2" X 3"
     finish    Brass
Aquired        March 2ØØ2