Abstract: A rear view mirror extension assembly that may be used in conjunction with the mirror support bracket on an automotive vehicle such as a pick-up truck, van or the like, and it is particularly useful when the vehicle is towing a travel trailer or boat to improve the field of vision for the driver of the vehicle rearwardly of the latter. The improved field of vision is desirable and increases the safety in driving a vehicle equipped with the invention on the highway, as well as permitting easier maneuvering of the vehicle drawing a trailer or boat into a recreational vehicle parking space.