enns, austria, 25 dec 2020, rear derailleur shimano crane on a vintage road bike francesco moser cromovelato equipped with shimano 600 and crane parts Stock Photo - Alamy
Shimano 600 GS derailleur (6001?)
Shimano 600 GS black derailleur (6101)
Vintage Shimano 600 Ultegra Rear Derailleur RD-6400 Short Index 7s Tri Color | eBay