Design: These mugs feature a distinctive barrel shape with vertical and horizontal panels. They are made of light green tinted glass, a style commonly referred to as Depression Glass. Markings: The bottom of the glass typically features molded numbers (e.g., "14" or "29"), which are often production or mold numbers. Capacity: Each mug typically holds approximately 8 ounces and stands about 4.25 inches tall. Age: These are generally dated to the 1970s