I just recieved my 5 blade w/o clutch that came off a 1969 and I know that this subject has been covered with the exception of something different about this one that is unlike the others I have seen posted on this site that fellow BB Nova owners might find interesting. The Fan I have is Identical in every way with the exception of the "W" and "TW" stampings in which this one does not have. The only stamping I can find on this fan is a small number "9" stamped on one blade. I was educated on this site about many things about these cars so I thought I would share this finding.