Stewart, Frost and Fleming found 730 IC objects at site #2 Arequipa
on photographic plates taken with an 8" and the Bruce 24" refractor between 1893 and 1907.
http://goo.gl/maps/kmfVA Zoom out to see the local area.
This article is in German. The recent photos are interesting.
http://www.scilogs.de/kosmo/blog/him...rnwarte-teil-4
See also
http://ocp.hul.harvard.edu/expeditions/boyden.html
and
http://via.lib.harvard.edu/via/deliv...iew&image=full
and
http://hea-www.harvard.edu/DASCH/telescopes.php