Authentic Edo period, c.1857 original Japanese erotic art shunga woodblock print picture by Koikawa Shozan (1821-1907).  Shunga picture measures 20.8 cm x 14.4 cm.  Very good colors and impressions. Overall good condition with a bit of wear and soiling.  Album backing.  Please refer to photos.  
 
A very funny Japanese original shunga woodblock print picture of a male bending his female partner over and penetrating her doggy style, emulating the two dogs beside them in the foreground.