The sign is in the Harel Brigade Observatory, which was photographed that day by the same photographer Click for a larger image
And in the following picture also by the same photographer, you can see the sign overlooking the Ayalon ridge Click for a larger image
Details of the Danny Operation can be found on the following sign located in the Memorial Square in Ramla Click for sign's details Translation of the text on the sign
Symbol of the Jewish National Fund
Symbol of the Harel Palmach Brigade Battle of the Ayalon ridge
At the end of "Danny" Operation , light on Tuesday, July 15, 1948, the Palmach Harel fighters attacked the Latrun posts held by large forces of the Jordanian army. In three major Israeli attacks previously carried out, the attackers were unable to occupy the posts.
The Palmach Harel forces managed to hold on to the high outpost of the Ayalon ridge in front of you, but a Jordanian counterattack from Beit Nuba, which was also aided by battle armor, caused heavy losses to the Palmach forces who had to retreat at dawn. In this battle, 19 Palmach Harel fighters fell.