Enjoy the beer that you deserve.
Like its more curvy pub glass cousin, this example is made of thick glass for rough handling and gradually widens from bottom to top.
The volume, as you have guessed, is 16 ounces (473 milliliters).
Some examples have a bulge around the top, which helps the bartender pull stacked glasses apart for use. The bulge also helps to protect the lip of the glass if it tips over. It is the most interchangeable of glasses and is used to serve many beer styles.