MX4 'Derbyshire Express' service timetable - Summer 1973

The MX4 'Derbyshire Express' service linked Alfreton and London (Victoria Coach Station) via Derby and Northampton and was jointly operated by Midland General, Trent, United Counties and Yelloway. Yelloway had picked up in both Derby and Northampton on its Lancashire to London services since the early days of coaching and by virtue of this became a joint operator on the MX4 service when it commenced operation. It was the only service upon which Yelloway was able to enter Victoria Coach Station, the terminal under the control of the Tilling and BET Groups (later National Bus Company) subsidiaries. Tickets were interavailable between the MX4 and the Yelloway services over the Derby-London section. Yelloway operated vehicles on the MX4 from time to time usually sending a vehicle away from its Rochdale base to Alfreton for about one week. The coach would do the round trip from Alfreton to Victoria and back each day and be stabled and cleaned at the Midland General garage at Alfreton each night. When the National Bus Company renumbered its express coach services the MX4 became service number 554.