Many solnhofen and other stone sundials have coats of arms on them. The Adler Planetarium and Astronomy Museum (Chicago) has many examples from the early modern period (say, 1550-1800). Contact Devon Pyle-Vowles, the collection manager, or Bruce Stephenson, curator, for images.
Sara Sara Schechner, Ph.D. David P. Wheatland Curator Collection of Historical Scientific Instruments Department of the History of Science Harvard University, Science Center 251c Cambridge, MA 02138 Tel: 617-496-9542 Fax: 617-496-5932 -