It's from a series of photographs I took of various warehouses in Allendale and Ramsey NJ with a bright summer sun behind me. The photo was retouched slightly to extend the building, add more loading doors, duplicate the left window on the right and remove the shade, and filter out unwanted features. The clouds were photographed separately and added in. The photo then was printed and laminated to foam board to use as a backdrop behind a single track photo module. Did it originally for the extended draft gear article in NSR Sep/Oct 2007.
I photographed a few buildings that day and made various backdrops. Here's another that was used in the NSR article.