This sand tee mold was patented in the US in 1926 by V.C. Christensen. The golfer would scoop up damp sand inside the mold, place the mold on the ground, then push the plunger button on top of the mold as he raised it up. This would leave a nicely formed "sand tee" on the ground. The golfer would place the ball atop the sand to begin a new hole. This example is in prime original condition.