Camera Obscura 'Vermeer's Camera'

specially designed double camera obscura made of wood consisting of two hinged cameras, the taking lenses can be focused individually, in very good condition with original instructions attached to one side. According to the description a painting or drawing is placed in front of one of the lenses, while the other one is focused on the model. In this way the two images are projected simultaneously onto the two screens and can be compared. Distributed by the Anson K. Cross Art School Inc.of Boothbay Harbour, Maine, measurements when closed: 20x21x13cm. Ex-Naylor collection.