Legal advertising: Lipped plates
A practical solution to advertising on a number plate, lipped plates come in one piece.
Lipped plates are a practical solution for motor traders that still wish to advertise because the advertising is outside the legally-controlled part of the plate design.
The exact shape of the lip varies slightly by manufacturer but usually allows for 12mm x 400mm or more of advertising space.
Images thanks to (from top to bottom, alphabetical order): Bestplate, Gould Group, Hills, Jepson & Co.