These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Amgueddfa Cymru – Museum Wales
Mines and Quarries Act, 1954. Mechanical Engineer's Certificate. Issued to Llewellyn Holland of 13, Park Street, Griffithstown, Pontypool. Certificate number '3986'. Dated 10th November 1972. Black print on white paper with details typed in black.
