How’s this for an advertising time capsule, or rather, paperweight and hone from the age of scythes and threshers? A premium given to potential advertisers of The American Thresherman magazine with a little cobranding from The Pike Manufacturing Company.

The whetstone side might be Belgian Yellow Coticule from the Ardennes, which would be 30-42% garnet crystals bonded with mica, which gives a sweet edge on a blade. Supposedly, the stone is one of the reasons Romans conquered Belgium/Belgica back in the day.