PHQ cards are postcards issued by the British Post Office depicting the designs of their commemorative stamps
[['Jane Austen Bicentenary', 'STAMP_ISSUE_DATE', '22 October 1975'], ['Jane Austen Bicentenary', 'CARD_SET_REF', 'PHQ 13'], ['Jane Austen Bicentenary', 'QTY._ISSUED', '27,330']]