Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Papers re. sparking plug, 1917
Letter sent from A.A. Thornton (Chartered Patent Agent) to C.H. Watkins (93 Forest Road, Walthamstow E17). Dated May 14th 1917. Re: No. 9050/16 Sparking Plug. Purple type on white paper.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.