I almost sold my dads old Peugeot today, but the guy said it was probably a valuable bike. I know it has all of its origional components, everything except the org. seat and pump. I believe that it is a 1975 or 1976 PR-10. The serial # is 2063235, if you can help me ID it that would be great! It has the shield and org. pain job, minus a few chips. It is well used and has been all over the world, but everything appears to be in tip top condition. Any ideas on value? (Now that I know it is a nice bike I might not want to sell it, but I do want to know whether or not it is worth it to keep)