Shimano RD-5701 10sp Rear derailleur
Fully working when removed from my 2012 Cannondale CAAD 3
years ago. No play anywhere on the derailleur.Few marks from use.
Distance between pulleys is 60mm. Was set up with 11/32T cassette, so I am assuming it is the GS (long cage) derailleur.
Please see photographs for condition