Shimano Claris front mech FD-2400 for double chainsets. Desihned to work with a compact and is for 8 speed drivetrains but of course will work with 7 speed.
Designed to work with 46-52T chainring and a 16T capacity.
The stone finish adds a nice touch. Overall a good piece of entry level 8 speed kit.
See this listing for braze on mech adpater to mount the braze on mech to a frame without a braze on.
There are there versions listed
1) Braze on
2) clamp on 28.6 or 31.8mm it will do both as there is a spacer/collar
3) clamp on 34.9mm