HC Deb 10 February 1967 vol 740 c378W
Mr. Galbraith

asked the Chancellor of the Exchequer what in terms of money value in 1938 would be the equivalent of today's 2.4d.

Mr. MacDermot

It is estimated that 2.4d. in December, 1966, the latest date available, would have had the same purchasing power as 0.7d. in 1938. This estimate is based on changes in the consumer price index, adjusted for movements in the index of retail prices during 1966.