This is a vintage embossed glass decanter, made in Spain.
The decanter is a blue tinted glass with two square ribbed bands around the neck, and a square center with diamond bands above and below what looks like MW with a circular pattern in the center. On the bottom it reads "Made In Spain".
This decanter measures 12.25" tall including the cork stopper, and 3" square.
It is in very good pre-owned condition.