Authentic Edo period original, c.1836, Japanese erotic art shunga woodblock print picture by Keisai EISEN (1790-1848).  From the shunga series, Konote gashiwa (Two Aspects of Love/ Child’s-hand Oak).  Shunga picture measures 22.5 cm x 28.2 cm.  Very good colors and impressions, as well as deluxe printing techniques used such as mica (metallic pigments) and gauffrage.  Condition is very good with some wear & soiling.  No backing.  Please see and judge from photos.
 
Another excellent antique erotic art woodblock print picture fom this series - a couple in the midst of climax; swimming turtles adorn the elaborate byobu (Japanese folding screen) behind them.