James Bretherton, British, active 1755 - 1799. After Henry William Bunbury, British, 1750 - 1811. Published by James Bretherton, British, active 1755 - 1799.
While a quack doctor would never refer to himself as a quack, his rival certainly would. Here two quacks argue over the merits of their rival antiscorbutic pills (for the prevention of scurvy, or vitamin C deficiency), one "veritable" and the other "true." For extra effect, their wives, dogs, and cats are fighting too. Both quacks wear full wigs, emulating a practice favored by respectable physicians of the period.