The top of this weighted arm tee is embossed "Star Tee Patent". The underside of the arm is marked with a british patent number and year of the patent— "Pat No. 8217 - 08.
The rubber tee has a large brass weight at one end of the arm and a sllghtly elevated cup/ring to hold the ball at the other end. This is a great early twentieth century golf tee from the UK!
Condition as shown in the images. This item is shown in the far left area of the group image