This photograph shows an example of a poster campaign by Cymdeithas yr Iaith or Welsh Language Society. It was adapted from the original for the exhibition in Nant Gwrtheyrn's Heritage Centre. The ruined Capel Seilo, once the village school and quarryworkers' chapel and meeting place, has been restored and houses the Heritage Centre where visitors can find out about the Nant's past and present.
The original poster is in the National Library of Wales http://canmlwyddia...
Today Nant Gwrtheyrn offers residential Welsh language courses and the facilities can be booked for conferences, special occasions and weddings as well.