 The higher-rate minimum fare (see Price and minimum fare below) applied to Ordinary Returns, while the lower-rate fare was used as the baseline for other fares.A 50% discount on Day Returns (valid at all times, for return on the same day) and Off Peak Day Returns (valid outside peak hours, again for return on the same day) was available from 30 September 1978.Other fares added later included the London Saver (1981; this type of ticket is no longer available) and Saver (12 May 1985; the discount on these was 34%).