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Watchmen's Time Detectors Operated by Batteries or Magneto Generators (1900)

Holtzer-Cabot Electric Company · Holtzer-Cabot Electric Company · leaf 33

An illustration from Watchmen's Time Detectors Operated by Batteries or Magneto Generators, 1900, leaf 33
CombinationReturn Call Bells and Buttons. PRICE LIST. Cat. No. 101 A. Metal Combination Belland Button, dark bronzeor nickel finish, . . $\A5 Cat No. 101. Wood Combination Bell, each .... *L45 Wood CombinationBell. GIVE CATALOGUE NUMBERS N ORDERING. … Cat 101 A. Cat. No. 101. 28 ,HIl,l|nimiiiiiiiiiiiiiiiiiiiiiiiiii„M,|,„||||n THEJIOLTZER-CABOT ELECTRIC COMPANY Boston. Mass. Diagram of Wiring FOR RETURN CALL ANNUNCIATORS. r O J n O 1 RETURN CALL FIRE ALARM 1 0 D+ fl n O L ANNUNCIATORBATTERY. O -P 0 Q 0 u The same number of wires are run as in…

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