This is a geometric shape 90's  Miss Junko , By JUNKO KOSHINO leather hand bag. 

Junko Koshino  is one of Japan’s most famous fashion designers, she has been designing her genre defining and visionary clothing ranges since the sixties.

The measurements from top to bottom are:

Top: 10’ W

Bottom: 14.5 ‘ W

Depth :7’ H 

Handle: 2.5’ H

Condition is very good.The surface of the bag , on the corners, show  some minor scratches.The leather on the corners are a little bend from sitting on a shelf for a long time.

Outer magnetic clasp closure.

Inner pocket with zipper.

Outer pocket on the back of the bang.