This old brass foundry has seen many owners and acquired lots of texture. This is a crop from a 4GB stitched panoramic image. 9x12" kallitype on Arches Platine.
Nice shot of a great looking old building. The print quality works perfectly with the subject. At first, prior to reading the the technical details, I thought you may have used an old lens with barrel distortion, but I think that effect is the way the building's architecture flares at the top.