Claude glass

In my first week in residence, I’ve been making these Claude glasses, small¬†curved black mirrors which 18th-century poets would have bound like a pocket-book and take up into the fells.

In a sonnet written in response to William Westall’s book of engavings, Views of the Caves near Ingleton, Gordale Scar, and Malham Cove, in Yorkshire,¬†Wordsworth describes the view into a cave as being just like a Claude glass, or ‘Truth’s mystic glass’. In later editions he changes this to ‘thought’s optic glass’.