Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Miner's dial
Metal instrument with glass cover to dial and metal removeable cover to protect glass. 'Negretti & Zanbra London' engraved on compass face.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.