There are several signatures at bottom of print-none look like Umbach. reverse side of print, handwritten Jonas Umbach; we previously ascribed this as by Johann Georg Wille, and its print number as print 23
descriptive_notes
There are several signatures at bottom of print-none look like Umbach. reverse side of print, handwritten Jonas Umbach; we previously ascribed this as by Johann Georg Wille, and its print number as print 23