| Clue | Source | Date |
|---|---|---|
| Old-school transparencies | Wall Street Journal | 28 Apr 2022 |
| Overhead transparencies | Newsday | 28 Feb 2021 |
| Overhead transparencies | Family Time | 10 Nov 2019 |
| More than one film star's touring gallery | The Telegraph Toughie | 16 Nov 2017 |
| Synthetic fabrics | Newsday | 07 May 2017 |
| Visual aid materials of gallery employed by experts | The Telegraph Cryptic | 03 Aug 2016 |
| Protective film sheets | Premier Sunday | 31 Jul 2016 |
| Clear plastic sheets | ||
| Some synthetic fabrics | ||
| Plastic overlays for artwork | ||
| Plastic overlays for artwork | ||
| Art protectors | ||
| Overhead transparencies | ||
| Clear overlays | ||
| Artwork overlays | ||
| Overhead sheets | ||
| Clear plastics | ||
| Film materials | ||
| Film materials | ||
| Clear sheets | ||
| Film bases | ||
| Certain salts | ||
| Some protective covers | ||
| LP disks e.g. | ||
| Protective overlays | ||
| Plastic strips | ||
| Bases for movie film | ||
| Textile fibers | ||
| Synthetic fabrics | ||
| Certain fabrics. | ||
| Popular materials. | ||
| Rayon fabrics. | ||
| Salts of acetic acid. | ||
| Plastic sheets |