A kaleidoscope is an optical instrument with two or more reflecting surfaces tilted to each other in an angle so that one or more (parts of) objects on one end of the mirrors are seen as a regular symmetrical pattern.
The mirrors of a kaleidoscope are usually enclosed in a tube, often containing on one end a cell with loose, coloured pieces of glass or other materials to be reflected in the viewing pattern. Rotation of the cell causes motion of the materials, resulting in an ever-changing viewed pattern.
This kaleidoscope is modelled on those found in antique shops in Prague during the 19th-century. Thanks to the optical viewer, you can see infinite repeating patterns with various coloured glass. Commonly found across the globe, the kaleidoscope has become one of the most widespread of optical toys.
Size: The Leather Kaleidoscope is approximately 4.5 x 21.3 cm (1.77 x 8.39 inches).