... founded in 1997 with the main objective of promoting research and educa-tion in the field of cultural heritage, based on the directions and recommendations given in the Professional Guidelines of the ... weathering (in climatic chambers) 44.2. Examination techniques 4.2.1. Visual examination The expert’s eye, eventually assisted by a magnifying glass or a binocular device, remainsof course the ... restoration practices in previous times. As well, identification of metallic inserts in statues, evidence of later repainting, lining or transposition of easel paintings, the application of protective...