Lasers conserve Pictish treasures

High-tech laser technology has been used to record and conserve one of the finest collections of Pictish carved stones in Scotland.

The St Vigeans Stones from Arbroath are being cleaned by a specialist team of Historic Scotland experts in Edinburgh.

Earlier efforts at conservation, dating back to the 1960s, carried out using the best techniques of the time have now reached the end of their life.

Well, I'd never heard of the term 'Pictish' before.