Presented is this historically important matched pair of scarce Siemens Hammerhead Style Double-Headed Telegraphs like those stationed on the bridge of the RMS Queen Mary.
A testament to 20thC marine engineering and the heroic requirement of passenger liners, each telegraph is distinguished with the "Close Watertight Doors" engine order, which became the critical safety standard for capital ships following the Titanic Disaster. The bridge would set the telegraphs to "Close W.T. Doors", to signal engineers of the activation of a system of hydraulic steel doors to effectively compartmentalize the ship's hull to contain an intrusion of seawater.
These museum quality massive bronze telegraphs are marked Siemens Brothers & Co. Limited London with four sequential serial numbers. In effect they are four independent engine order telegraphs, with 2 mounted on each pedestal.
Proudly exhibited, a similar model of one of these telegraphs today serves Siemens headquarters.
CHRISTIE'S Auction House also showcased a Siemens Telegraph at its Maritime Auction in New York on July 20, 2005. However, the Christie's example did not have the rare engine order to 'close watertight doors.'
Understandably, just one of these magnificent steamship telegraphs is extremely rare, but to acquire a matched pair is probably a once in a lifetime opportunity worthy of any marine antiques collection.
Although their active duty provenance has yet to be determined, they were most likely conserved from the bridge of a twin-screw passenger ship.
Both telegraphs are in good sound original unpolished condition, with their electrical external bells and internal lights presently untested, but apparent original condition.
Approximate overall dimensions: Height (not including handles) 45-1/2" X Width 15" X Depth 21" X Weight 250lbs.
Please check QUEENMARY.COM, the official RMS Queen Mary website for views of the similar Siemens Telegraphs serving the bridge and on exhibit in Long Beach, California.

Siemens Company History
Recognized for innovative technology since 1843 with a patented revolutionary electroplating process, William and Werner Siemens went on to patent telegraph equipment and their firm ultimately became a communications and electronics powerhouse.
The firm was responsible for the development of the first undersea telegraph cable connecting US and Britain in 1873, and by 1914 Siemens laid half of the cables between Europe and North America.
Other significant milestones include:
1847: the first automatic dial telegraph and, the first alarm bell system to warn railway workers of approaching trains.
1860: first devices for measuring voltage and resistance introduced.
1884: the Ohm - was adopted as the standard, based on Siemen's measurement system for resistance.
1922: made some of the earliest engines for passenger-carrying aeroplanes.
1930: pioneered electric locomotive design.
1958: developed and produced first cardiac pacemaker.
1988: developer of first 1Mb memory chip to go into production.
For more information please check: siemens.com.

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