What's the difference? - Campagnolo Rally vs. Nuovo Gran Sport

Campagnolo Rally

Rear derailleur (with hanger)

3450/1

Nuovo Gran Sport

Rear derailleur (without hanger)

3500

Shared parts

These parts share the following 9 parts:

82-a

Not yet documented

82/A

99

Not yet documented

99

120

Not yet documented

120

120-1

Not yet documented

120/1

Fixing screw

Bolt

124

808-a

Not yet documented

808/A

810-1a

Not yet documented

810/1A

812-1a

Not yet documented

812/1A

813-a

Not yet documented

813/A