Originally Posted by Dirtdrop
...I put my NOS Super Record with titanium bolts on eBay and nobody bid on it. Go figure!
Super will always sell, if the starting price is right. The really hot Super Record, is the first generation stuff made before '78. Of the second generation rear derailleurs, the earliest date codes seem to be the most valuable ('78-'82). Most common seem to be PAT 84, PAT 11 (1985), and the last of 'em without any PAT code.