Pictured on page 59 of Irwin Valenta's Book, The Singular History of the Golf Tee, the G. and S. horizontal swinger tee is described as "the creme de la creme of spinners!" And for good reason.
The Brass upright supports a thick green rubber arm that is held in place with a round knurled and treaded nut, and all of these components are beautifully made. When assembled, the brass upright pegs into the ground and the golf ball is placed on the end of the long, green arm. The arm will spin when the golfer strikes the ball and the tee will never become lost. While one vintage G and S Spinner tee in mint condition in the box is a great item, a dozen of them all in their counter display box is pretty much unheard of. Note that the lid of the counter display box has become detached (it is simply propped up in the first photo), but when the item is as rare as this item is, the detached lid is a relatively small issue that can be discreetly repaired. What a great find!