GA026 - Tempus Fugit: The Collection of George Gyori | Australian, Maritime & Exploration
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34<br />
159<br />
159<br />
A polished brass ‘Century’ telescope<br />
by W. Watson and Sons<br />
together with a box <strong>of</strong> cased lenses<br />
inscribed ‘W Watson and Sons 313<br />
High Holborn London’ to rim <strong>of</strong> the tube<br />
the stand 154cm high, length <strong>of</strong> the<br />
extended tube 140cm<br />
$800–1,200<br />
160<br />
An early Tesla coil<br />
27.5cm high, 35.5cm wide,<br />
24.5cm deep<br />
NOTE<br />
A Tesla coil is an electrical resonant<br />
transformer circuit designed by<br />
inventor Nikola Tesla in 1891. It is used<br />
to produce high-voltage, low-current,<br />
high frequency alternating-current<br />
electricity. Tesla experimented with<br />
a number <strong>of</strong> different configurations<br />
consisting <strong>of</strong> two, or sometimes three,<br />
coupled resonant electric circuits.<br />
$400–600<br />
159
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