Hardware Around Town - Guden Rod Pulls

A great looking rod pull is the perfect addition to any door. I spied this stainless steel handle on this glass door and it made me think of the several ways a handle would mount in an application. Is it a surface mount where the handle is welded ? Is it screwed down from the front of the door?
Or maybe are the screws hidden and it's mounted through threaded holes in the rod pull like the application shown here. You can find all the different Guden handle and rod pull styles here: https://www.guden.com/control/handles-pulls