These self-adhesive stickers, printed on clear plastic are replicas of the marks stencilled on the rear of cabs when granted their annual licence. They will not damage paintwork. and can be removed by the application of gentle heat, such as hot water or a hair drier.
They show the year and month the cab was licensed. The design, and thus the mark was changed every year, which means the date DOES NOT refer to the year a cab was first licensed or built.