Authentic Edo period original, c.1835, Japanese erotic art shunga woodblock print picture by Kunisada Utagawa (1786-1865).  From the shunga series, Kari no fumi.  
Shunga picture measures 22.2 cm x 26.5 cm.  Excellent colors and impressions!  Condition is very good with a bit of wear along the left edge and soiling at top left border - another bold and beautiful looking shunga!  No backing.  Please see and judge from photos.
 
Quite a comical scene featuring one clearly happy - and lucky! - unattractive monk with a big-breasted Japanese beauty.  On the other hand, his creepy monk friend isn't sharing his luck as he is left drooling and masturbating to himself, while helplessly looking on in envy.