Vintage National Sewing Machine Company.  Drip pan for beneath sewing machine. To protect parlor table from any oil dripping from lubed machine.  For flat bottomed National sewing machines.  This from drop down (automatically with chain to top lid) sewing machine table. Made from what looks like tin (easy bend). Attaches underneath machine opening with 4 nails (not included).  Measures: 12 1/2" x 5 1/4"  oil pan capture area with overall measurement of 14 1/2" x 6". May be dirty and some minor bends but should work for your restoration project.