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File:Mental hospital Philadelphia PA micrograph by Langenheim & Co. ca. 1858.jpg
De Wikipédia, l'encyclopédie libre
Found in articles
Fichier:Mental hospital Philadelphia PA micrograph by Langenheim & Co. ca. 1858.jpg
Description
Mental
hospital
Philadelphia
PA
micrograph
by
Langenheim
&
Co
.
ca
.
1858
.
jpg
English: A 1 mm diameter early
micrograph
, of
Mental
hospital
, Philadelphia