Glacier Bay 364-913 Reproduction Color:White We are not positive but

We are not positive but believe the hole is used for some kind of locking mechanism

Toilet Model: Sparta or Medalist

New Lid P/N: 82848

Lid Size: 17" x 9

Tank Size:14

Glacier Bay 364-913 Reproduction Color:White We are not positive butManufacturer: Glacier Bay Lid Number: 364 913 Lid Size: 15. 25" x 7. 5" Tank P N: Tank Size: 15. 25" x 7. 5" This is a reproduction toilet tank lid. These lids are custom designed with sophisticated 3D modeling software and manufactured in North Carolina. It is available as a beautiful sapele wood tank top simply coated with marine grade spar urethane to provide moisture resistance and also available to match any toilet manufacturers original color.