Buses (Posting Boxes) 69. Brigadier Medlicott asked the Assistant Postmaster-General if he will now reintroduce facilities for posting letters in special boxes attached to late buses from rural areas. Mr. Gammans Posting boxes on buses are already used in some rural areas where a satisfactory service cannot be provided in other ways, but their introduction as a means of providing late evening collections in country districts generally would make calls on manpower which would be difficult to justify in present circumstances.