Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Papers re. sparking plug, 1917
Technical drawing of a spark plug. Registration No. '161691'. Dated 29th August 1917. A few purple stamps in Italian.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.