The restoration of the right (west) triumphal column of Karlskirche in Vienna, which began in 2024, prompted a comprehensive reappraisal of the restoration history of the two columns, which were created around 1730. The work involved examining archival sources and thoroughly analyzing the stone surfaces, the copper eagle and crown, and the wooden elements of the lantern. The restorative and scientific examinations performed to
accompany the ongoing work offered insight into an almost 300-year-old construction history and helped to characterize previously undated restoration phases and establish connections between reworkings of stone and metal surfaces. A total of eight restoration phases for the stone surfaces of the right column and at least six gildings for the eagle sculptures have been verified.