Polyorama panoptique. Invented by Pierre Henri Armand Leford
Exceptionally Large Polyrama Panoptique, invented by Pierre Henri Armand Leford in 1849. Using the principle of Daguerre's Diorama to give day/night effects to optical views in a portable device.
Includes 5 views in 26 x 33.5 cm format. This example has its carrying box that also acts as a stand for the viewer, thanks to its two sliding wooden bars that support the bellows for ease of focusing.
Of the 4 sizes that were made, this is by far the largest and most rare.