1958 Mercury.       'NEW-OLD-STOCK' BACK-UP / REVERSE LIGHT-LAMP SWITCH For Push-Button Transmission..    This is an ORIGINAL FORD NOS PART.    This is in Excellent NOS Condition.  Brand new in the box. Ready To Install.   Impossible To Find Original NOS.  Please email with any questions.         103119-9              WE HAVE AN EBAY STORE WITH THOUSANDS OF ORIGINAL FORD PARTS. CHECK IT OUT.