Article 4
The 1973 Order shall be further varied by substituting, in Article 6 of the Schedule thereto, in the proviso to sub-paragraphs (1)(i) and (1)(ii) thereof—
(a)
for the words “6th April 1977” the words “6th April 1979”; and
(b)
for the figure “£5.23” the figure “£6.62”.