Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Indicator graph taken off unidentified engine
Cream paper with black print and hand drawn graphs. Three pages attached with a brass paperclip. On top of page is printed 'Crosby Steam Engine Indicator, manufactured solely by Crosby Steam Gage & Valve Co.' Dated 4 July, 1920.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.