 These promotions were characterised by restricted validity and geographical availability.For example, one Southern Region scheme introduced in 1970 offered pensioners half-price travel at off-peak times on Tuesdays, Wednesdays and Thursdays only, for journeys from a set list of around twenty stations, upon production of their pension book (to confirm their eligibility).All of these schemes were superseded by the introduction of the first Senior Citizen Railcard (as it was then known), valid throughout Britain, on 1 April 1975.