This is a 1969 Union Bottling Works, Conroe, TX, grand opening commemorative Pepsi / Dr. Pepper glass tumbler. It has both the Pepsi and the Dr. Pepper insignia on the front of the tumbler, along with a picture of the new building, and the date, on the back side. They were manufactured by Libbey. There is a cursive “L” on the bottom of the glass.
I have four (4) of these tumblers for sale, each one separately. They are all in excellent, like new, condition. They hold 12 ounces, full to the top.
Take a look at the pictures, and if you have any questions, please e-mail.