Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)
Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 37
Made either Gravity Drop, French or Needle, at same price.Cat No. 102. Hotel Annunciator, 50 to 100 indications «« above 100 103. and Return Call, 50 to 100 indications u it •( • ■ above 100 104. Return Call Board, only (for Motels already supplied with Annunciator) . Case Elaborate and Finely… … Lacing tmm MSCNCMT MM MM V c o
