That capitol stylized "G" next to the upper screw is the logo for Grass.
It's definitely an older model, from back when their drilling pattern of the cup-side screws, was different.
Back in the day, we had to have a separate drill/inserter for them, since Salice, Blum, and pretty much everyone else had a common pattern.
It appears that someone has already changed them once.
Though I'm more familiar with the clip together frameless style myself. I bet only 10% or less are face frame, in my regular use.