Production Run 1911 - 1923 Nameplate B-4 Serial Number 26293 Manufactured 1915 Base size 3.5" X 6.375" finish Black Japanned Damper T Ckt Closer Yes Aquired December 2ØØ1 Sold August 2ØØ2 to N6LM |
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See the "Vibroplex Collector's Guide" Second Edition by Tom French for more information on Vibroplex decals |