New Service D50 was introduced by Birmingham and Midland Motor Omnibus Company Limited (BMMO—Midland “Red” Motor Services) on Saturday 29th November 1958, as a local Droitwich Spa service. The service ran only on Saturdays, departing the Salters' Cinema (now the site of Droitwich Library) each hour between 0910 and 1710, for Stalls Farm Estate. The return journey departed Stalls Farm Estate at 21 minutes past each hour.
This service was not listed in the October 1959 timetable, so it can only be assumed that it was either withdrawn or sold to another operator soon after being introduced.