Authentic Edo period original, 1824, Japanese erotic art shunga woodblock print picture by Utagawa Kunitora (active in the early 19th C. and one of Toyokuni's top pupils).  From his shunga series, Senrikyu.  Shunga picture measures 22 cm x 27.5 cm.  Very good colors and impressions!  Also some gold mica (metallic pigments) on the samurai's elaborate costume.  Condition is good with some wear and soiling, few tiny holes at bottom, bit of staining on reverse.  Please see and judge from photos. 
 
A great antique original shunga erotic art scene from this series!  Here, an elaborately-suited samurai, indicative of his prestigious rank, attempts to cop a feel from his female companion.  She seems receptive to his advances as her legs are open and a partial glimpse of her vagina is exposed, as well as some of her pubic hair.