Ключевые слова: acid, acidic, analogue, analysis, archival, artifact, artifacts, arts, assessment, brittleness, care, challenges, chemical, collection, curatorial, damage, decay, degradation, deterioration, documentation, elements, environment, film, history, indicators, issues, material, media, natural, old, optical, patterns, preservation, processes, projectors, quality, records, restoration, stock, studies, substrate, surface, syndrome, texture, vinegar, vintage, visual,