Johann Jakob Biedermann
(Winterthur, 1763 - Zurigo, 1830)
IL GHIACCIAIO ROSENLAUI
penna, inchiostro bruno e gouache, 460x750 mm
al recto, in basso a sinistra, a penna e inchiostro bruno: "J. J. Biedermann"
THE ROSENLAUI GLACIER
pen, brown ink and bodycolour, 460x750 mm
on the recto, lower left, pen and brown ink: "J. J. Biedermann"
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