Article (website)  (1998)  Page(s) 4.  Includes photo(s).
 
'Godaizu' (left), bred by Tanaka Shinzaemon, and 'Kurokouji', bred by Nagao Jiro, from the Sample book for export to America "Peony Illustrated Book" (published by the Flower Bulb Association of the Niigata Prefecture in 1936).