Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
The Engine Indicator (booklet)
Green cover with black print. Full title - The Engine Indicator, Its Commercial value and Instructions For Use. 24 pages stapled together with one b & w photo and many drawn images.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.