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
The Concordia Electric Safety Lamp Co. Ltd., Luma Works, Sanatorium Road, Cardiff. Black print on white paper with date typed in black. Dated April 1957. Letterhead cut from original letter.
