Keywords: Horizontal sundial with heavy plumb bob beneath dial plate, Christopher Trechsler, Dresden, 1611 - Mathematisch-Physikalischer Salon, Dresden - DSC08035.JPG en Exhibit in the Mathematisch-Physikalischer Salon Zwinger Dresden Germany This artwork is old enough so that it is in the public domain Photography was permitted in the museum without restriction 2013-12-08 07 27 06 own Daderot other versions PD-old-70 cc-zero Sundials in Mathematisch-Physikalischer Salon Zwinger Dresden Uploaded with UploadWizard Horizontal sundials Metal sundials |