1978 Edna HIbel "Shizue" Lithograph Limited Edition of 1,000

This piece was just discovered in my parent's house (passed down from my Grandmother). It looked interesting, so I did a little research and found some information about the artist, but not the piece itself. It's labeled as a 1978 limited edition of 1,000 pieces (this is number 327) from Stockhome Enterprises in Switzerland. The frame looks as if it has a gold underlay (or may have been painted), and has a canvas framing outside of the main frame.

It looks as if Edna Hibel started doing lithographs around 1977, so this would be a fairly early piece for this type of artwork, as near as I can tell.

Any information that can be provided would be greatly appreciated.