The title is from a New York Times article
by Roberta Smith on the Barnes collection
(see previous post):
“Nearly every room is an exhibition
unto itself— a kind of art wunderkammer,
or cabinet of curiosities….”
Another sort of Wunderkammer:
Shown above is a Google image search today for Göpel tetrads .
The selected detail is an Oct. 7, 2011, image search
for claves regni caelorum escher (2 MB).