@slemmer_02hotmail-com
These are model S22 Pagholz Galvanitas chairs.
Industrial design for institutional use. Still being made today.
Pagholz are a German company and Galvanitas was founded in Holland in 1934.
The seats are made from Pagwood, a plywood soaked in resin and then molded/pressed into shape.
Lots of examples of different models and further info online.
Regards,
Lexi.
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