The lozenge shaped sign is a speed restriction sign of 70km/h on the Tyne and Wear Metro. I'm not certain what the white on blue circular sign beneath is, but as the metro has adapted other standard road signs it might be a minimum speed indicator.
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Photo by <a href="mailto:cmckenna@sucs.org?subject=rail-photo at railfaneurope.net">Chris McKenna</a> 10/10/2005.<br>
Larger, higher quality copies of most of my pictures are available, please email if you want a copy.

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