This clear, wide mouth glass Ball jar has the original Ball zinc lid with milk glass liner.  The embossed lettering has no underscore and off set "Perfect Mason" letters.  These characteristics date it 1913-1915.  Jar has slight wear after many decades of use from home canning and is consistent with its age.  No chips or cracks.  Lid shows its age.  Measures 5" T x 2 .5" diam