Rear view mirror unit

Claim 1

A REVERSIBLE BASE MIRROR COMPRISING: A BASE, THE BASE HAVING A CONNECTION PORTION PROVIDED WITH A BORE THERETHROUGH OPEN AT OPPOSITE ENDS THEREOF; A STEM HAVING A PORTION POSITIONABLE WITHIN THE BORE AT EITHER END THEREOF, THE STEM HAVING A SEMISPHERICAL END, THE STEM HAVING A THREADED PASSAGE THEREIN, AN ADJUSTMENT SEREW THREADED POSITIONED WITHIN THE THREADED PASSAGE, THE ADJUSTMENT SCREW HAVING A SEMISPHERICAL HEAD WHICH IS IN ALLIGNMENT WITH AND ENGAGEABLE WITH THE SEMISPHERICAL END OF THE STEM, THE SEMISPHERICAL HEAD ALSO BEING MOVABLE IN SPACED RELATION FROM THE SEMISPHERICAL END OF THE STEM, A CONNECTION SCREW EXTENDING INTO THE BORE AT THE END THEREOF OPPOSITE THE STEM, THE CONNECTION SCREW ALSO EXTENDING INTO THE STEM SO THAT THE STEM IS SECURED TO THE CONNECTION PORTION OF THE BASE, A MIRROR HOUSING, THE MIRROR HOUSING HAVING AN OPENING THEREIN PROVIDED WITH AN ARCUATE PERIPHERAL SEAT, A PLATE WITHIN THE HOUSING AND SECURED THERETO ADJACENT SAID OPENING, THE SEMISPHERICAL HEAD OF THE ADJUSTMENT SCREW BEING IN ENGAGEMENT WITH THE PLATE WHILE THE SEMISPHERICAL END OF THE STEM IS IN ENGAGEMENT WITH SAID ARCUATE SEAT, THE HOUSING THUS BEING ADJUSTABLY ROTATABLY CARRIED BY THE STEM AND BY THE ADJUSTMENT SCREW.