![[Thue?] April 1917](/api/img/thumb/zapffe%3AURN%3ANBN%3Ano-nb_digifoto_20130808_00056_NB_PWZ_N02_56_38?w=1600)
A man in a suit stands beside a chalkboard in a classroom and looks down at a book or papers.
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Norwegian mountains & climbing life · Nasjonalbiblioteket
Nasjonalbiblioteket (National Library of Norway), Peter Wessel Zapffe archive
publicdomain
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