Mac Fisheries Fish Prices SchlegerOriginal vintage food advertising poster for the Mac Fisheries by the notable graphic designer Zero (Hans Schleger; 1898 1976) featuring a fun and colourful drawing of a smiling fish holding a price label of 4 1 2 in its fins against a red background with the text "We always mark our prices" below in black and white letters. Mac Fisheries (1918 1979) was founded by William Hesketh Lever (1st Viscount Leverhulme; 1851 1925) of Unilever Brothers with