Description

'Sancta Nicotina Consolatrix

South west view of St Paul's Cathedral

'An Act of Grace

Inscribed: 'Particularitez des corps humain

Periscopic camera obscura Blondin 'Sancta Nicotina ConsolatrixPlate 9 from the paper 'On a periscopic camera obscura and microscope', William Hyde Wollaston, Philosophical Transactions of the Royal Society, vol. 102 (1812), pp. 370 377. Five figures sketching basic optical details of a conventional and periscopic camera obscura, periscopic prism of a camera lucida and a periscopic microscope. The work is inscribed above with publication and plate details. Not signed. Royal Society stamp verso. Watermarked 'Ivy

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