Engraved Glass Prism - Laurence Whistler

This steps outside of the 'stained/painted glass' remit; it is so exquisite, however, I must include it. In the Morning Chapel at Salisbury Cathedral, I spent some quiet time just looking at it - as it slowing turns, the scene changes.
There is other engraved glass by Laurence Whistler in the cathedral which I won't include here, as photographing clear glass rarely does it justice.

Laurence Whistler - master of engraved glass