When we worked in Hong Kong our local pub (The Kangaroo in Tsim Sha Tsui, sadly long gone) had "pints" of two sizes.
There were the "pints" for the local brews which were 500ml and the glasses (mug style) supplied to be used for the imported British ales which were a "proper" pint of 568ml. <edited coz of picky people>
Ordering the local ale in a British glass "because we liked the handle" worked for about 3 months before the manager realised, we were getting rather more beer for the same $$$