I misunderstood just what you were asking for. I thought you wanted the whole sign cabinet, not just the retainer for the faces. Most of the bigger companies have the equipment to bend that simple radius. Is it a 6" - 7" 8" (' or 12 " radius? Acken Signs in Bluefield, West Virginia had a lot of radius's dies for the old Shoney's signs, Everbrite in Milwaukee made a lot of Exxon radius Cornered sign cabinets and even SIgncrafters in Evansville, Indiana made a lot of radius corners. Dualite Signs in Cincinnati, Ohio has also done many chain store clients as well. You also might try ABC Extrusions in Fort Collins, CO or Carters-Waters in Kansas City to see if they still bend their extrusions. Both Kolux and Watco signs in Shelbyville, TN are long gone. Its a tough business and getting tougher! I've been in it since 1965 and been with several large manufacturing sign companies. Good luck! If I can be of further assistance just call on me. Send me the actual radius drawing, we have a pretty large quantity of graveyard sign and we just might have that one too.