Based on my recollection of the location of the tel, I think those who have identified it as Tel Erani are correct. Here is a comment I have left on the Tel es-Safi/Gath page.
Sorry to be the center of a controversy. I think this photo was made very near Qiryat Gat. I have only been in this area a few times and was having a hard time identifying this tel with the photos of Tell es-Safi. Todd is probably correct in saying this was still the identification given by a guide back in 1969.
I am away from home for a couple of days but what I have been able to locate on the Internet indicates that the photo is of Tel Erani.
My recollection is that this tel is on the north side of the road leading from Bet Guvrin and Lachish to Ashkelon.
My plans are to be back in Israel in a month, but I won’t have the opportunity to check these places. Maybe later in the year!