If, however, you are unable to find an image of a site, please contact the Cadw Photographic Library at cadwphotographiclibrary@gov.wales.
Fodd bynnag, os na allwch ddod o hyd i ddelwedd o safle, cysylltwch â Llyfrgell Ffotograffig Cadw ar cadwphotographiclibrary@llyw.cymru.