"Antique Stereoscope Viewer Mackenstein Paris"
I can't tell you much about this optical device other than what I found on the web.I can't even tell you if it works or not, although I assume the optical part is intact.
Accompanied by a stove and a few glass plates.
More detailed photos can be found in the file: https://www.dropbox.com/scl/fo/99xdlk3aqragwian03klv/AMB7jSU14HmsLKcDgXiuwmA?rlkey=am43q9sbwh07gbqfx0r4jl7vc&st=qb4dyomx&dl=0
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