Reaching out to the bicycle community for some suggestions. Here is an old Centurion bicycle frame that might date back from 77 that's what I am gathering from the bottom of the serial code. The frame is steel. What you are seeing is where a kickstand use to take place there and over time whomever had owned the bicycle previous kept on tightening the hole and little by little crushed the bottom of the frame. I was checking to see if there were any cracks and there are none. I really want to save this bicycle and turn it into a fixed gear but in the process don't want to buy parts and let the frame crap out on me. I was thinking just as an idea to have the bottom of the frame be re welded. Any help would be much appreciated.