Authentic Meiji period original and authentic (c.1900), Japanese shunga erotic art woodblock prints.  It's a complete set of six different fruit woodblock print pictures/envelope pouches, all of which are analogies for the female vagina.  The fruit shown in the very first photo, from top left to bottom right are as follows:  1) chestnut,  2) fig,  3) apple,  4) litchi,  5) peach,  6) pomegranate
All pictures here are actuallly miniature woodblock print envelopes.  They come inside a larger ukiyo-e casing with a fruit basket on the cover.  Larger shunga case measures 11.3 cm x 5.6 cm when closed up.  The envelope pictures each measure 4 cm x 6.2 cm and are in very good condition.  Very good colors and impressions.  No backing.  Please see and judge from photos. 
 
This is a very odd and rare set of sexually connotative artwork from c.1900 Japan.  Funny and - quite clever - fruit erotica.  These would also fall under the shunga trick-picture-oddity theme.  So seemingly innocent, yet explicitly sexual in nature, even their casing, which also has a comically suggestive cunnilingual title loosely translated as follows:  "Please, feel free to eat whichever you like."  Whether you're a fruit-fetish fan or maybe thinking about becoming one, this would be a good place to start!