Golfer's periscope

All the wacky things people come up with for a game involving a small sphere and a long stick:

A NOVEL “skyscraper” periscope shows golfers the blind fairway at the third hole at the Aberoovey golf course in Wales.

The unusual periscope is 30 feet tall. At the third hole of the course the fairway rises so abruptly from the driving tee that golfers can not see the green even though the hole is only 165 yards long. By peering through the periscope, waiting golfers can see in what direction to drive and also note when the putting green is clear.

The periscope is a hollow wood tube fastened to a pole. The top of the instrument is covered with a gabled roof to protect it from rain.

Tall Periscope Aids Golfers (December 1933)