Your Gevaert roll probably has more aesthetic and monetary value as an antique. I've experimented with Kodak Portrait Panchromatic sheet film from 1959 with an ASA 200 rating, and had to derate it to ASA 5 to obtain a useable image. Any imaginary aesthetic added-value from the base fog was more than offset by the film's sheet-to-sheet unpredictablilty, and surface ripple and 'artifacts' that had formed on the film over the years. If you want special aesthetics, maybe you are better off using Photoshop.
If your roll had images on it, I would definitely take a chance on developing the images.