Foreword

The following list of Foreword links has been included for convenience.

Footnote 2 - the 1950 rate of Purchase Tax as specified in a House of Commons debate. https://api.parliament.uk/historic-hansard/commons/1950/apr/06/purchase-tax

Footnote 5 - the annual number of units imported, and their value as specified in the answer to a House of Commons question (summarised in the table on the right).
https://api.parliament.uk/historic-hansard/written-answers/1963/apr/23/photographic-equipment-imports