Shimano Front Derailleur. Check pics for condition.

Compatible Brand: Shimano
Color: Silver
MPN: 7800
Mounting Type: Braze-on
Number of Speeds: 10 Speed
Cable Pull Type: Bottom Pull
Mounting: SEAT TUBE
Brand: Shimano
Type: Front Derailleur
Model: DURA ACE
Compatible Bike Type: BICYCLE
Cable Routing Type: Bottom Pull
Number of Chainrings: Double
Country/Region of Manufacture: Japan
Part Type: Front Derailleur