sentences:  On the first version of RSP 3599, each ticket had diagonally cut-off corners, but this later changed to rounded corners as is standard on most other ticket issuing systems.Both of these types had pre-printed headings such as "Class" and "Ticket Type".With the move to "Common Stock" ticketing, where all information is printed by the machine, RSP 9299 stock with no pre-printed headings was introduced.