Radio time signal device.
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Yle Arkisto - Yle Archives</div>
15 June 1963<div style="display: none;">date QS:P571,+1963-06-15T00:00:00Z/11</div>
This file is shared by <a rel="nofollow" class="external text" href="http://yle.fi/">The Finnish Broadcasting Company Yle Archives</a>.