Publix Grocery Store Vintage Advertising 6oz Mug Embossed Made in England green

PUBLIX Grocery Store retro advertising logo mug 1960s or 1970s - EXTREMELY rare - no staining, marks, or chips - flaw on bottom of cup? Looks like it is under the glaze - Great condition for the age of the mug the bottom is embossed with maker initials "WP" and MADE IN ENGLAND George Jenkins founded Publix Supermarkets in 1930, Lakeland Florida There is no record on Etsy, in Ebay Sales history, or What's it Worth App Google search did produce a find for sale or sold HEIGHT: 3.5" WIDTH top circumference: 3" WIDTH at base circumference: 2.5"