New Service 346 was introduced by Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services) on Sunday 14th June 1925, shortly after the opening of Hereford depot. The service ran between Hereford, Ledbury, Colwall Green and Great Malvern on Thursdays and Sundays only, during the summer season.
Service 346 was renumbered to Service 477 on Saturday 11th February 1928, but as this during the winter season the new route number was not used until the start of the next summer season on Wednesday 30th May 1928.
Between c. 1937[Exact Date Needed] and early 1940[Exact Date Needed] Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services) operated Service 346 as an extended variation to their Service 316, that ran between Worcester, Kidderminster and Stourbridge.
While Service 315 and Service 316 continued to operate between Worcester, Kidderminster, and Stourbridge, most journeys were extended at the Stourbridge end of the route to start and finish in Dudley, as new Service 345 and Service 346. This extension was short-lived, and by June 1940 the section of the route between Stourbridge and Dudley had been withdrawn and all journeys were once again operated as Service 316.