Lawn maintenance, contractors, race cars; so many trailers service so many different types of work out there, why not add advertising to the list? How many eyes see the back of your trailer every day while you are on the way to a job, at the job, or in traffic on the way home from a job? Coker Sign has customers who swear that the best advertising space on the planet is the BACK of their trailer. Do you have a trailer that isn’t selling for you?