Can you identify this maker's mark?

Can anyone identify the embossed/impressed maker's mark on the bottom of these two frosted (or satin) amethyst glass vases? Inside the square to the left looks like CIC or CCI, but there is something above the CIC/CCI. It almost looks like a tree. The design inside the square is the same on the right and left. However, it may not even be CIC or CCI at all. The larger rectangle surrounding the square is a large stylized G then LASS, or GLASS. The vases themselves look like purple angel trumpet blooms. The glass is frosted or satiny and quite thick, with impressed ridges from the opening to the bottom. A deep ring cinches the vase at the bottom of the bowl where the base stem begins. They are approximately 7.375" tall. The mark is what I am most interested in.

I found a CCI online - Crystal Clear Industries from Yugoslavia. That glass is all crystal clear, no colored glass.

Your help with this mark is greatly appreciated!