I did not get to the last sale involving a 1972 diesel synchro but found out it sold for 8,200 dollars. The appearance was fair with the hood emblems off and moderately worn mismatched rear tires. It also had differential lock with two remotes with one looking like it needed a rebuild. The engine sounded OK when I stopped to look ahead of the sale but had a fair amount of oil wash on the RH side. This was 3 years ago to the month that this tractor sold. Another similar condition 1972 4020 is rumored to be coming up for sale soon. Just trying to gauge the market right now with grain and milk down from where it was three years ago.