I think it might have been used as a book shelf in a previous life.
I used small clips to hang light necklaces that are attached to clear backing. It made it easy for my customers to access them and saved valuable table display space.
I have also hung my necklaces directly on it. It holds a ton of merchandise and can be packed at home.
I have since be able to use it for other things too...holding supplies in my studio, displaying my boxed jewelry and storage.
More recently I found another stand similar to this and was able to attach a french message board to the front to display necklaces and bracelets with u-pins.