The sign is part of a series of signs posted by the Raanana Municipality that describe significant places in the history of the place.
The QR code indicates the following link from the Raanana Heritage site: The first pool and signal tower
The tower with the sign on it was photographed on the day the sign was photographed Click for a larger image
On the tower appear in the embossed words:
Marking the year of pool construction (1924) by J. Yentel Click for a larger image Translation of the text on the sign
Raanana city emblem
[Image: The Watchtower]
Signal tower over water pool
The signaling tower above the first water pool, which was erected during the 1936–1939 Arab revolt in Palestine. At the head of the tower distant messages were transmitted, by signaling a flashlight,. This was the surest way to pass them. These were mainly messages from the Haganah organization. During World War II, a lantern projector was placed on the tower for an aerial enemy search in the sky. An alarm horn was also installed there. During the War of Independence, an iron tower about 5 m high was added to it, which was removed years later.