Mae'r cwcis hyn yn gwbl angenrheidiol ar gyfer weithrediad y wefan.
Rydym yn defnyddio Google Analytics i fesur sut ydych yn defnyddio'r wefan er mwyn i ni ei wella yn seiliedig ar angen defnyddwyr.
Gall y cwcis hyn gael eu gosod gan wefannau trydydd parti a gwneud pethau fel mesur sut rydych yn gwylio fideos YouTube.
Amgueddfa Cymru
Photographs taken from a magazine article and mounted on card. Black and white print on cream paper with the title 'Historical Pictures'. Seven black and white photographs with captions below each. Photographs consisit of: - Mr. G. Marconi in his office at Marconi House, Strand (1920) - GS Kemps diary showing 12 Decemebr 1901 and the record of the reception of first wireless communication across the Atlantic - The Kite - suspended aerial at Signal Hill, 1901 - The 25 kw Mather & Platt alternator used at Polden Wireless Station c. 1901 - The first wireless operator's table used at Polden c. 1901 - The masts and aerial at Polden, 1901 - G.S. Kemp, Mr Marconi and P. Paget at Signal Hill, 1901