Vintage Light Onyx 7 Hole Cylinder Flower Frog

Good vintage condition. Signs of age/use shown in pcs. There’s a few cracks but they don’t go all the way through and the cylinder is still very much secure as a unit. Previous owner assumed it was a pen holder, pens do not fit FYI, got one stuck and blue ink has seeped into some of the cracks giving parts of it a blue tint. I have tried to remove it but I really don’t know where to start with something like this. Looks pretty as is. Measurements in pcs. Please look at all pics and zoom in for a closer view. Vintage Light Onyx 7 Hole Cylinder Flower Frog