William Eggleston "Bottles In Window" photo.

Was bought on the last day of an estate sale for $10. I don't know much about William (or art in general) I just really liked it. I previously posted that it was "signed on verso" (which means on the back, like the tag stated), but after carefully taking it out of the frame I do not see a signature so it is not signed. It is on Kodiak paper. My wife has been gathering information on William and we love his other photos as well. If anyone has any info on this piece, we would love to know anything we can about it. Thanks!