Pony [2] : A small glass for beer. In New South Wales, Victoria, South Australia, and Western Australia, a pony of beer holds 140 milliliters (about 5 British fluid ounces)
Russ Rowlett (Director), How Many? A Dictionary of Units of Measurement, Center for Mathematics and Science Education University of North Carolina, USA 2005. http://www.unc.edu/~rowlett/units/dictA.html, (Unit of Meas and Covr Factors - Amer) {608}