The first version of Service W7 was part of the original local Worcester bus network that was introduced by Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services) on Friday 1st June 1928, following the closure of the City's tram network. It ran between Worcester City Centre and the Berwick Arms on Bath Road, as a direct replacement for a tram route that had previously terminated at the same place.
By the end of 1938, Service W7 had been withdrawn and replaced by additional journeys on Service W10, which ran over the same route but continued along the Bath Road to terminate at the junction with Norton Road.