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 15.3 cm.  Very good colors and impressions, as well as gauffrage on the clouds giving them some depth!  Condition is decent+/good with some wear, soiling, and wormage with most of it being on the border and not the actual picture.  Please see and judge from photos. 
 
Another interesting antique shunga erotic art picture, while being somewhat homoerotic, as a phallus god atop the clouds looks on with an aroused companion (see erection) who's observing someone below via his telescope.