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Amgueddfa Cymru – Museum Wales
White cotton t shirt. Produced to promote 'Helo Bobol' - the first programme to be aired on BBC Radio Cymru on 3 January 1977.
Short sleeves and round neck. Printed yellow sunburst on front, followed by Helo Bobol / Haul y Bore! printed in blue. BBC Radio Cymru logo in red beneath