Authentic Edo period original, 1854, Japanese erotic art DELUXE shunga woodblock print picture by Koikawa Shozan (1821-1907).  From his shunga series, Shaka hassho zoku yamato bunko, published and dated 1854.  Shunga picture measures 22.3 cm x 22.9 cm.  Excellent colors and impressions! Also some deluxe printing techniques such as gauffrage, urushi-e, which is a type of black lacquer, and mica (metallic pigments).  Condition is very good with some light wear and soiling, most notably at bottom left border.  Please see and judge from photos. 
 
Truly a splendid original deluxe shunga woodblock print picture by Koikawa Shozan!  In this shunga scene, some type of erect god is emerging from the mountainside, along with the morning sun, whose beams are gleaming on the sakura (cherry blossom) trees, as well as the couple in the midst of intense outdoor lovemaking.