The Armme Stereoscope was manufactured in the United States by the Armme
Company LTD. 608 South Dearborn Street, Chicago, Illinois in the late
50's or early 60's. It was made from rigid black plastic and was
illuminated by a 3v single filament incandescent bulb, powered by two
'D' sized batteries.
The lenses could be pulled out for cleaning and to allow a small degree of
focusing to be achieved. The light was activated by a button on the
underside of the unit. The viewer was comfortable and light to hold and
worked very efficiently.