Stereoscopes work on the principle of viewing left and right eye images of the same image and in the process having the image appear as 3 dimensional. The have been popular since the middle of the 19th century.The Holmes version of this object was manufactured cheaply and became widely available, hence it is an object with which many people would be familiar.Wooden oval shaped with glass viewing inserts. Extension in cross shape with wire brackets either side.warrnambool, stereoscope, holmes stereoscope

This is a wood stereoviewer with folding handle The viewer has two lenses at a set distance in the wooden hood which is lined in green velvet. The pictures can be moved vertically on the slide holder in order to focus them. These devices became popular in the middle of the 19th century. This is probably a Holmes type stereoscope, named after its inventor, Oliver Wendell Holmes (1860). Velvet lined view mask with engravwed patterns. Frame is silky oak wood with a handle underneath.stereoscope audio-visual appliances

The development of stereoscopic photography views or stereographs was immensely popular in the United States and Europe from about the mid-1850s through the early years of the 20th century. First described in 1832 by English physicist Sir Charles Wheatstone, stereoscopy was improved by Sir David Brewster in 1849. The production of the stereograph entailed making two images of the same subject, usually with a camera with two lenses placed 6 cm apart to simulate the position of the human eyes, and then mounting the positive prints side by side laterally on a stiff backing. Brewster devised a stereoscope through which the finished stereograph could be viewed; the stereoscope had two eyepieces through which the laterally mounted images, placed in a holder in front of the lenses, were viewed. The two images were brought together by the effort of the human brain to create an illusion of three-dimensionality. Stereographs were made of a wide range of subjects, the most popular being views of landscapes and monuments and composing narrative scenes of a humorous or slightly suggestive nature. Stereoscopes were manufactured for various price ranges and tastes, from the simple hand-held device introduced by Oliver Wendell Holmes who promoted stereography through articles to elaborate floor models containing large numbers of images that could be flipped into place. The stereograph became especially popular after Queen Victoria expressed interest in it when it was exhibited at the 1851 Crystal Palace Exposition. Like television today, stereography during the second half of the 19th century was both an educational and a recreational device with a considerable impact on public knowledge and taste. The Fine-art Photographers' Publishing Co. published many stereoscopic pictures from many different photographers from around the world under license. They also not only sold these images of various scenes and of famous people of the time but also were retail sellers of the viewers with the subject item having been made in the USA probably by H C White who held the patent for the subject items design from 1895 to 1902.An item that was very popular from the mid 19th century through to the beginning of the Edwardian period. Used for entertainment and also educational purposes and significant as it gives us a snapshot into the Victorian era and its social and domestic societal norms. Stereoscope viewer with adjustable view-finder that has a padded nose rest. The slide holder can move along the channel to suit the viewer. Made in London by the Fine-art Photographers' Publishing Co. Printed on metal plate "THE FINE-ART PHOTOGRAPHERS' PUBLISHING CO. 48 Rydevale Rd, LONDON, S.W." Embossed on viewing cup "U.S.A. PATENT OCT.15.1895" "CANADA / FRANCE / GERMANY / D'R''G'M' NO. 53803" "JUNE 3.1902 / FEBY 1.1896 / B.S.G.D.B. / GREAT BRITAIN / AUSTRIA / BELGIUM"warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, flagstaff-hill-maritime-village, stereoscope, stereographs, stereoscope viewers, home entertainment