In order to meet the social needs,to im-prove the postal service and to speed up themail delivery,beginning from August 10,1983a new kind of pillar boxes were installed bythe Beijing Post Office in the city’s major busi-ness centres,vital communication lines,in theresidential areas and in the front of the gov-ernment departments.And they are painted inyellow at top for identification from the commongreen-coloured pillar boxes and are called In order to meet the social needs, to im-prove the postal service and to speed up the mail delivery, beginning from August 10, 1983a new kind of pillar boxes were installed by the Beijing Post Office in the city’s major busi- ness centers, vital communication lines, in theresidential areas and in the front of the gov-ernment departments. And they are painted in yellow at top for identification from the commongreen-coloured boxes and are