sentences:  It was widely known as the All-Purpose Ticket-Issuing System, a description which was used during the development of the prototype devices.It led to the introduction, on the national railway, of a new standardised machine-printable ticket, the APTIS ticket, which replaced the Edmondson railway ticket first introduced in the 1840s.APTIS issued impact printed tickets on credit-card sized card ticket stock, with a magnetic stripe on the centre of the reverse which could be encoded to operate ticket barriers; it could also use plain non-magnetic ticket stock.