What the heck is it?

[tater307]

Says WARRENTED SUPERIOR on the front. I have a few flat buttons with this on it but this is no button

 

[creskol]

It goes on the handle of a handsaw.

http://www.wkfinetools.com/hUS-saws/z_reading/WarrSuperior/warrSuperior-1.asp

 

[TheCannonballGuy]

Medallion from the wooden handle of a saw. It screwed into another disc to hold the sawblade in the handle. There are many variations of the type you found. Quite a few have turned up in this forum for ID in the past. I don't have links to those posts, but I'm sure somebody will provide them if you wish to see other similar saw-handle medallions.

 

[TxTim]

That's from a handsaw handle.

 

[Bigcypresshunter]

Heres a great link on Diston saws. Scroll to the bottom. http://www.disstonianinstitute.com/medallionpage.html