It belongs to Hank at the Helotes Bike shop. Another poster mentioned these may have been salvaged derailleurs, but not this one. Hank goes way back in the bike world and he indicated that is the way the earliest versions of SR came to him. If you click my sig and look in the Helotes folder, you will see the pics I took of the shop. WARNING! If you are a neat freak, these pics are not for you!!!