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North side of the nave central section, St. Stephen’s Cathedral, Vienna
West chapel lower part ca. 1360 to 1395, upper part ca. 1400 to 1440, Side of the nave completed in 1440, Lobby of the bishop's gate around 1510, decorative pediment 1855/56 in imitation of the Friedrich pediment on the south side, restored in 1881
Multani Karavansaray, Baku, Azerbaijan
The Multani Caravansaray is located in the Old City of Baku - Icherisheher. It was built in the 14th century for Indian merchants, fire worshippers, who came from the city of Multan in India, present territory of Pakistan.
Buxara Karavansaray, Baku, Azerbaijan
The Caravansaray was built at the end of the 15th century on the trade route of the Old City. Only shell limestone quarried on the Absheron Peninsula was used as building material.
Straub epitaph, St. Stephen’s Cathedral, Vienna
Relief in Breitenbrunner limestone, ca. 1540
Opera House, Baku, Azerbaijan
The Opera and Ballet House was founded in 1920 and is a cultural institution of Azerbaijan. Institutionally, it is part of the Ministry of Culture and Tourism of Azerbaijan. The building is located in the city center of Baku.
Opera House Baku / Azerbaijan
23/02/2022
The Azerbaijan State Academic Opera and Ballet House Azerbaijani: Axundov adına Azərbaycan Dövlət Akademik Opera və Balet Teatrı is the first and only opera house in the Azerbaijani capital Baku.
Albertine choir, west facade, south tower, St. Stephen’s Cathedral, Vienna
Medieval choir, Romanesque-Gothic west facade with heath towers, benefactor statues, tombs, South Tower
South side of the nave central section, St. Stephen’s Cathedral, Vienna
Eligius chapel around 1360 - 1400 and Bartholomew chapel until 1437, Singertor 1440 - 1450, restored 1894 - 1896, Friedrich pediment 1430 - 1440, restored 1982ff and 1928, decoration of other pediments 1853/1854, restored 1882ff
Fountain in the Garden of the Dominican Convent, Hütteldorf, Vienna
Circular, profiled fountain border made of Lindabrunn conglomerate with ∅ 850 cm. Leaky fountain basin and defective and non-existent fountain technology.
Steinkonservierung im Unterdruckverfahren
09/06/2020
Video-presentation as part of COL-conference #4 (Construction of the Center for Renewal of Common Cultural Heritage)
Qoşa Qala / Double city gate north, Baku, Azerbaijan
Historic Old Town "Icheri Sheher", 13th – 14th century (Silk Route), weir system with two flanking, crenellated semicircular towers and battlements, two entry gates with overlying cast openings "Maschikulis", approx. 1000 m² surface of stone blocks
Hamam, Baku, Azerbaijan
Historic Old Town "Icheri Sheher", Oriental bathhouse around 17th century (Silk Route), underground facility with around 25 rooms on three floors, originally with towering cupolas and ventilation shafts, total area approx. 300 m²
Lion's Gate south, Coat of arms Leo, Belvedere Palace, Vienna
Limestone from Zogelsdorf, 240 cm tall, 1350 kg. 24 years after the last restoration, the decision was made for security reasons, to create a copy of the lion in shaken cast of artificial stone reinforced by fiberglass.
Benedictine Abbey, Frauenzell, Germany
Portal west wing, column shafts
Desalination with Vacuum-Circling Process
26/06/2017
Only available in German.
War memorial, Germersheim, Germany
Monolithic lion sculpture, 210 cm hight and barrel-shaped pedestal, 65 cm hight, diameter 120 cm, Historicism
Family crest, Greillenstein Palace, Lower Austria
Renaissance family crest made of limestone from Zogelsdorf
First Exhibition at Beyler Mosque
24/03/2017
After successfully completed total renovation, the first exhibition takes place at Beyler Mosque.
Minaret Juma Mosque, Baku, Azerbaijan
Historic Old Town "Icherisheher",16th century, approximately 25 m height, balcony with differently ornamented parapet panels, decoration with stalactites, among them inscription in "Kufi" writing ornaments, Absheron limestone
Application of Ethyl Silicate Based Consolidants on Sandstone with Partial Vacuum: A Laboratory Study
06/09/2016 - 10/09/2016
Science and Art: A Future for Stone: Proceeding of the 13th International Congress on the Deterioration and Conservation of Stone, Volume 2. Paisley: University of the West of Scotland. S. 955ff; by H. Siedel, J. Wichert and T. Frühwirt
Vacuum-Circling Process: A Innovative Stone Conservation Method
06/09/2016 - 10/09/2016
Science and Art: A Future for Stone: Proceeding of the 13th International Congress on the Deterioration and Conservation of Stone, Volume 2. Paisley: University of the West of Scotland. S. 931ff; by Erich Pummer
Ethyl-silicate Consolidation for Porous Limestone Coated with Oil Paint – A Comparison of Application Methods
06/09/2016 - 10/09/2016
Science and Art: A Future for Stone: Proceeding of the 13th International Congress on the Deterioration and Conservation of Stone, Volume 2. Paisley: University of the West of Scotland. S. 889ff; by M. Milchin, J. Weber, G. Krist, E. Ghaffari, S. Karacsonyi
Christ on the Cross, Raasdorf, Lower Austria
Christ on the Cross, new polychromy, 1920
Beyler Mosque, Icheri Sheher, Old City of Baku, Azerbaijan
South facade with minarets, prayer room, mihrab prayer niche, 19th century