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Amgueddfa Cymru – Museum Wales
A Necaco Limited outside pass card used by Mr Jack Thomas at the former Aircraft Parts Manufacturing base which was located at Dinorwic Quarry during the Second World War. Black and white photograph of Mr Jack Thomas inside with signature of O.T. Williams the Quarry Manager. Dated 5 May 1941. Mr Jack Thomas was an employee at the Dinorwc Quarry.
