Authentic Edo period original, from the Kaei period (1848 - 1853), Japanese erotic art shunga woodblock print picture by Kunisada Utagawa (1786-1865).  From the shunga series, Shunshoku Tamazoroi (An Assortment of Pleasure in Spring).  Shunga picture measures 24.5 cm x 16.4 cm.  Very good colors and impressions.  Condition is decent with some wear, soiling, wormage, thin washi (Japanesse rice paper) backing.  Please see and judge from photos.
 
A great shunga scene of a couple engaged in intercourse at night with the light of the lantern beside them exposing their intimacy.