One of my favorite artists is Catherine Klein, who was born in Prussia in 1861 and became widely known as "the" rose painter in the 1890's.   Her exquisite work was widely circulated because it appeared in print form on postcards, calendars, gift books, etc. This was during the "heyday" of such items, and they are highly collectable today.  You'll often find these vintage items  for sale on this site.  Popular here, too, are the "C. Klein Series" and "Treasures From Yesteryear Series"which are compilations of reprints of  many of these antique ephemera, mainly Catherine Klein designs.  These books are great studies for china painters and decorative artists.  I recently copied a favorite little still life from the cover of the C. Klein Series, Vol. 8 book and thought you might like to see it.  Her work was mainly watercolor and my copy is oils, but I tried to replicate the "looser" style that watercolor permitted (not an easy thing for this "tight" artist <grin>).  I'll be teaching this in November, 2009 at Painter's Paradise.