Authentic Edo period original, c.1842, Japanese erotic art shunga woodblock print picture by Kunisada Utagawa (1786-1865). 
From the shunga series, Shiki no sugatami  (Viewing Forms in the Four Seasons). 
 
Shunga picture measures 25 cm x 28 cm.
 
Very good colors and impressions.  Condition is good with some mild wear and soiling, mostly at bottom border.  No backing.  Please see and judge from photos.
 
Another incredible scene from this shunga series as two woman share a lesbian encounter.  The woman on top, clearly the aggressor, forces her partner to accept the double-headed dildo (tagaigata) penetration against her will.  This particular shunga scene is arguably the most sought-after lesbian shunga artwork of the Edo & Meiji Periods combined.