Palomar, TeresaIwanicka, MagdalenaPombo Cardoso, IsabelVilarigues, MárciaTargowski, Piotr2024-02-242024-02-242023-122050-7445PURE: 83897672PURE UUID: a5118286-bbbc-4ad7-b2a0-79e66fcc5639Scopus: 85171856053WOS: 001076498300001ORCID: /0000-0003-3328-6749/work/153923236http://hdl.handle.net/10362/164093This study was partial funded by the Fundação para a Ciência e a Tecnologia of Portugal (Projects ref. UID/EAT/00729/2020, UIDP/00729/2020, UIDB/ 04349/2020, PTDC/ART-OUT/5992/2020 and researcher grants CEECIND/02249/2021 and 2021.01436.CEECIND) and acknowledges the financial support of the Access to Research Infrastructures activity in the H2020 Programme of the EU (IPERION CH Grant Agreement n. 654028 and IPERION HS Grant Agreement n. 871034). Publisher Copyright: © 2023, Springer Nature Switzerland AG.This work presents an assessment of the different decoration techniques applied in the two glass windows from the Casa-Museu Dr. Anastácio Gonçalves (Lisbon, Portugal) by Optical coherence tomography (OCT). The Dining Room glass window was found to be decorated with grisailles and acid etching, and the Atelier window with grisaille, enamel, and cold painting. The alteration state of the surface decorations was also assessed. The thicker surface decorations (grisailles and enamels) presented cracks and detachments, in contrast to the thinner lines which are normally well preserved. OCT is a suitable technique for characterizing glass decoration in situ without dismounting the stained-glass window; and able to reveal the condition and methods of manufacture that cannot be detected simply by visual inspection.174268762engArt NouveauEnamelGlass windowsGrisailleOptical coherence tomographyConservationChemistry (miscellaneous)ArchaeologyMaterials Science (miscellaneous)ArchaeologyComputer Science ApplicationsSpectroscopyjournal article10.1186/s40494-023-01048-6https://www.scopus.com/pages/publications/85171856053