"" Stereoscope stereoscopic cards with 10 showing a Pictorial History of Wireless Brown Instruments"" The stereoscope is a little old, with beautiful gilded letters on the front. It opens and closes easily. There are 10 different Stereoscopic cards that fit in the display section. The first shows a section of Acton Showrooms, and each shows a manufacturing process speaker speaker - fascinating series of photographs. Produced by S.G. Brown Ltd London W3 * Manufactured by Camerascopes Ltd, London. Measures Viewer / Glass 8x11,5