The eyelet holes in the dropout area are usually dual purpose, usually refferred to as mudguard eyelets, but which you can also mount a rack. As seen on most basic hybrid/touring style bikes.
Your frame looks like its a quality racing bike, on which the former was probably only intended.
Of course you can mount a rack, better here than clamping to the seatpost/seatstays. But perhaps load it a little less than you would do a trekking kinda bike.
Oh, and make sure they are actually small eyelet holes, as they look quite big and theres a small chance they are fancy cutouts (unlikeley)
The eyelet holes in the dropout area are usually dual purpose, usually refferred to as mudguard eyelets, but which you can also mount a rack. As seen on most basic hybrid/touring style bikes.
Your frame looks like its a quality racing bike, on which the former was probably only intended.
Of course you can mount a rack, better here than clamping to the seatpost/seatstays. But perhaps load it a little less than you would do a trekking kinda bike.
Oh, and make sure they are actually small eyelet holes, as they look quite big and theres a small chance they are fancy cutouts (unlikeley)