Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Papes re. traffic control lights, 1958
Letter dated 18th April 1958 sent by C.H. Watkins to The Automatic Telephone & Electric Co. Ltd., Strowger Works, Liverpool. Typed on white paper and signed by C.H. Watkins.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.