Offered are (3) Oil Burner ON/OFF Switch Coverplates by MULBERRY of Union, NJ, USA.  The switches are marked EMERGENCY SWITCH.  Each is standard size and for standard switch mounting.  4-1/2 X 2-3/4 inches in size. They are suitable for emergency cut-off or for regular service work for use with a service disconnect.  Red mounting screws included.  Mouse over the photo images to zoom in. NO RESERVE!! Thanks for looking.