Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Report
Two page "Report of the Technical Committee" of the Institute of Patentees relating to the invention of steel pit props by W.H. Davies. Dated 27th August 1930. Typed on two pages.
Pwnc
Diwydiant
Rhif yr Eitem
2012.97/2
Mesuriadau
Meithder
(mm): 329
Lled
(mm): 203
Dosbarth
roof supportNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.