The triumphal columns built at Karlskirche in Vienna from 1724 to 1730 have undergone extensive renovation work since 2020: In 2020 and 2023, the stone reliefs were in an alarming state and removed and photographed by our company, Restoration Company of Mag. Klaus Wedenig. The damage was documented in maps, and emergency safety measures had to be taken. In 2021, sample surfaces were applied to test methods and primarily define the goal for the upcoming restoration. The newly acquired photos were compared with historical photos from 1905, and formal changes were explored during the numerous restorations. The developed view of the winding
columns, which was created to document the exemplary conservation from photogrammetric mapping, allowed the
illustrations of the Albrechtscodex (ÖNB, Cod. 7853) to be compared with the completed reliefs for the first time.