cash registers, which is the machine printed date/fare/machine number on the ticket front. Some NCR24 machines were later bought from Dutch Railways for use on the Southern and these were distinguishable from NCR21 because the machine data, in a slightly different format, appeared upside down on tickets. To interest collectors, even the smaller stations would carry pre-printed ticket stock for single and return, adult and child journeys to numerous local stations and London, with "blank" stock also available for use for journeys for which no printed stock was available. Use of Edmondson tickets issued by British Rail declined during the 1980s as computerised systems superseded them. After APTIS was launched in 1986, NCR21-equipped stations were converted to the new technology, concluding in June 1989 with the removal of Edmondson tickets from Emerson Park railway station., although the last Edmondson Tickets were sold by Emyr Phillips, proprietor of Pembrey Travel, a station agency at Pembrey and Burry Port, on the west Wales to Paddington main line on the '4th Feb. 1990' and not Emerson Park as stated. A sale of special “last day of issue” commemorative Edmondson tickets was commissioned; one was even purchased by a gentleman in Australia. The sum of some £500 was raised for Great Ormond Street Hospital as the result of the sale of last-day commemorative tickets. The Edmondson system is still in use on many heritage railways in the UK. For example, the Severn Valley Railway, the West Somerset Railway, the Bluebell Railway, the Isle of Wight Steam Railway and the Swanage Railway print Edmondson tickets for their own use as well as for a number of other heritage lines. In Sussex the Bluebell Railway has a number of Edmondson printing machines that are to be placed on display in a specially-built museum at the front of Sheffield Park station. There are several small companies that still produce Edmondson tickets on request. Half fares Typically, half-fare single tickets (e.g. for children, dogs, and bicycles) would be created by cutting the ticket in half vertically; half-fare return tickets by having a diagonal cut across the ticket, having the value of half the adult fare. The remaining part was placed in a groove in the lid of the ticket rack above its tube. It could then be used as another child ticket, or counted as a credit. Rear of ticket The reverse side of a ticket might be