Authentic Edo period original, Bunsei era 8th year (1825), Japanese erotic art, shunga woodblock print picture by Kunisada Utagawa (1786-1865). 
From the classic shunga series, Hyakki Yakou. 
 
Shunga picture measures 15.5 cm x 22 cm.  Excellent colors and impressions!  Condition is decent+ with some wear, soiling, wormage.  No backing.  Please see and judge from photos. 
 
Here a Japanese beauty readies some ceremonial/religious rites.  A different style and color variant from this version, which was very common practice amongst Edo Period shunga artists, can be found here.