Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Thirty Years of Wireless (booklet)
A history of wireless to celebrate the thirtieth anniversary of the first wireless signal to be received across the Atlantic Ocean. 10 pages, with 10 black and white photographs.
Pwnc
Diwydiant
Rhif yr Eitem
34.219/14
Mesuriadau
Meithder
(mm): 225
Lled
(mm): 145
Dosbarth
communicationNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.