[JoeProBono]

In Scotland, the traditional measure of weight is a "stone," which equals 14 pounds. Block weights weighing two stones (28 lbs.) and four stones (56 lbs.) were used to balance scales for measuring grain. These weights were thrown by locals gathering around the grain store to determine who was the strongest man in the village. The contestant must keep at least one foot within the sidelines of the 4'6" wide and 9' deep throwing box at all times. The backline and frontline - marked by the toe board called a "trig" - cannot be crossed at any time during the throw.

[moose07]

That’s it Joe!
Strange system to use, but,it goes with the territory.

[NoCmpromiz]

These weights were thrown by locals gathering around the grain store to determine who was the strongest man in the village.

And if tossing a stone around doesn't win the strongman title, you can always toss a telephone pole or two...