6.—(1) A non-automatic weighing machine shall not have monetary indications in units other than decimal currency units.
(2) A price computing non-automatic weighing machine shall not—
(a)indicate in digital form during a weighing operation a part of a penny in the amount of the price to be paid by the buyer; or
(b)indicate the price in digital form and have any monetary indications in units of a part of a penny in vulgar fraction form which are capable of being used during a weighing operation to calculate the price.