Unis France 'Metascope'

beautifully designed table-top viewer produced in the early 1920's by Mattey Paris, sold under the Unis label, the ‘Metascope’ replaced Mattey's earlier ‘Stereothéque’. A unique feature of the ‘Metascope’ is its ability to view either 45x107, or 6x13 format slides, this is done by using the appropriate size trays and inserting a metal mask behind the lenses (not included). Adjustable focus and eye base, image indicator, customized electrical illumination. A very interesting and decorative viewer.