I believe the rail roads still use the Edison cells for the signal system. The batteries might even still be being manufactured. The wrench would have been a common item in use until they were replaced with the modern socket set. The socket set is a comparatively recent development. The socket sets from the 20s and 30s were formed tubing.
On Tue, 10 Jul 2007 11:06:56 -0600, Andrew Baron wrote: >Hi Carl ~ >Does your catalog have a printed date or other indication of >approximately when it was made? >Andy >On Jul 9, 2007, at 11:40 PM, C Wright wrote: >> It is called a "Pole-Nut Wrench" for a Edison Nickel-Iron-Alkaline >> storage battery. I have a catalogue from Thomas A. Edison >> Industries that show it and it came in three different sizes. >> >> Carl Wright >_______________________________________________ >Phono-L mailing list >http://phono-l.oldcrank.org
