anders glasplaten en kaarten Stereo viewer

Beautiful wooden stereo viewer for glass plates and stereoscopic cards
Estimated date around 1920
Brand unknown.
Sharpness tester works,
Base setting works but runs stiff.
Lenses are good and have a large diameter.
Woodwork is well varnished, virtually no damage.
At the back there is a ground glass + an original blue color-correcting glass.
The viewing mirror for stereoscopic cards is no longer good. Hinge works fine.
1 enclosed stereoglass plate with size 170x85 mm. base approx 73 mm.
A lock to prevent the glass plate from sliding out is on the side.
This is a large handheld viewer, a real showpiece.