The photo is mine, provided years ago to Alabama Public Television when they were shooting “Rosenbaum House in Alabama” and to Debbie Wilson, who runs the Florence tourism promotion office. PBS picked it up when they did their FLLW series in 1999. The photo (yes, it is chez Rosenbaum) has been on the web in reverse since October 13, 1999. As in this instance, you can sometimes check the provenance of a website through the Wayback Machine ( http://web.archive.org). I never bothered to write to correct the error of the left to right reversal.
P.S. A much better item on the PBS website is FLW’s rendering of the house. Find it at http://web.archive.org/web/20041229231416/www.pbs.org/flw/buildings/usonia/usonia.html