SHIMANO CRANE / DURA ACE 1ST GEN GROUPSE...

Shimano 1st Generation Dura Ace D-501 Crane Rear Derailleur Weight :
+- 250 Grams with dates back to the early 70's. Works great! Remarkable
quality earliest Dura ace rear derailleur.  Crane rear derailleurs have
been paired by Shimano with Dura Ace parts. Later they have been
renamed to Dura Ace. Its made of aluminium and steel.  The item shows
some minor signs of use. Very good condition, there is a little bit of
dirt and patina, but not