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2. Presidential call button - Wikipedia

   en.wikipedia.org/wiki/Presidential_call_button

   This system was followed by a battery operated device, used by the President, that could be used to call on staff. The White House was wired for electricity in 1891 allowing for simple wired call-buttons. [3] An 1881 letter written by White House disbursing agent William H. Crook refers to an electric bell attached to president James Garfield's ...

3. Oval Office grandfather clock - Wikipedia

   en.wikipedia.org/wiki/Oval_Office_grandfather_clock

   The Seymour tall case clock in the White House, more commonly known as the Oval Office grandfather clock, is an 8-foot-10-inch (269 cm) longcase clock, made between 1795 and 1805 in Boston by John and Thomas Seymour, and has been located in the Oval Office since 1975. [1]

4. Electric clock - Wikipedia

   en.wikipedia.org/wiki/Electric_clock

   These keep time by counting the oscillations of a calibrated tuning fork with a specific frequency. These were only made in battery-powered form. Battery-powered clocks have been made using the schemes above with the obvious exception of a synchronous movement. All battery-powered clocks have been largely replaced by the lower cost quartz movement.

5. Quartz clock - Wikipedia

   en.wikipedia.org/wiki/Quartz_clock

   Developing quartz clocks for the consumer market took place during the 1960s. One of the first successes was a portable quartz clock called the Seiko Crystal Chronometer QC-951. This portable clock was used as a backup timer for marathon events in the 1964 Summer Olympics in Tokyo. [46]

6. 108 Leonard - Wikipedia

   en.wikipedia.org/wiki/108_Leonard

   108 Leonard (formerly known as 346 Broadway, the New York Life Insurance Company Building, and the Clock Tower Building) is a residential structure in the Tribeca neighborhood of Manhattan in New York City, New York, United States.

7. List of heritage sites in KwaZulu-Natal - Wikipedia

   en.wikipedia.org/wiki/List_of_heritage_sites_in...

   Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) This is a list of the heritage sites in KwaZulu-Natal as recognized by the South African Heritage Resource Agency. For performance reasons, the following district has been split off from this page: List of heritage sites in Pietermaritzburg SAHRA ...