Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Notes
unknown
()
Typed in purple ink on cream paper. Some details handwritten in ink. Four pages of notes entitled 'Re Mr. Tupholme's Letter'. Notes refering to turbo-compressors and compressed air production. Dated March 9th 1926. Loose within a beige/light brown card file labelled 'general information file, power generation' and 'compressed air production.'
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.