The photographer is Robert Steidl
Perhaps he was from Austria…or Germany?
This is a very old CdV it is probably from the 1860’s.
Thanks for stopping by.
Update from Lars1:
Robert Steidl was a photograhper in Bruck an der Leitha (Bruck a d L) (bridge over Leitha), in eastern Austria (between Vienna and Bratislava). The street Altstadt (old town) is still there.