Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Notes
Memoire Descriptif depose a l'appui d'une demande de brevet ... Five page typed document in French with rear card cover and stapled at left. Registration No. '161691'. Dated 29th August 1917.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.