Periscopic camera obscura Finish:Stretched Tommy Wright and Mike Trebilcock

Tommy Wright and Mike Trebilcock

Two figures

'The Wine Shop'

Backing sheet inscribed: 'Joshua Brookes 1819 Joshua Brookes was elected a Fellow of the Royal Society in 1819

Periscopic camera obscura Finish:Stretched Tommy Wright and Mike TrebilcockPlate 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