![[NF.WB 21030 Markeringslys?]](/api/img/thumb/wilse%3AURN%3ANBN%3Ano-nb_digifoto_NF_WB_21030?w=1600)
[NF.WB 21030 Markeringslys?]
A black-and-white close-up shows two teardrop-shaped mechanical housings with small glass bulbs inside.
Edges
Norway in the making, 1900s–40s — Nasjonalbiblioteket
Nasjonalbiblioteket (National Library of Norway) / Norsk Folkemuseum, Anders Beer Wilse collection
publicdomain
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