Daniel Roth's "sundial links" at http://www.infraroth.de/index.html?nav_d.html,/cgi-bin/slinks.pl contain a link to "Almost 200 pictures of sundials & other astronomical clocks (by Peter Lindner)" at http://home.arcor.de/peter.lindner/sundials.htm .
I visited this site today by chance when searching for something else, and I found that the site now contains "959 Sundials/Astronomical clocks in 3681 pictures" as written in the header. Very worth a visit. A more special source, but very comprehensive is the paper "Historische Sonnenuhren in der Erfurter Altstadt" (Historical sundials in the historic center of Erfurt, in German only) by Tim Erthel, published in "Mitteilungen des Vereins fuer die Geschichte und Altertumskunde von Erfurt" 72. Heft, Neue Folge, Heft 19, 2011, p. 41-71, and available for complete preview at http://books.google.de/books?id=k0YvN5iEqJMC&pg=PA41 . Best regards, Wolfgang Dick --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
