AS A PART OF OUTREACH TO OTHER COUNTRIES,THERE IS A GROWING TENDANCY AMONGST POSTAL ORGANISATIONS OF VARIOUS NATIONS TO PERIODICALLY CO-OPERATE WITH EACH OTHER AND ISSUE STAMPS AND OTHER PRODUCTS. JOINT STAMP ISSUES IS A MANIFESTATION OF THIS.THE STAMPS ARE COMMOMERATIVE STAMPSAND PREFERABLY RELATED TO AN EVENT THAT IS COMMON TO ALL COUNTRIES LIKE ANNIVERSARY OF COMMENCEMENT OF DIPLOMATIC RELATIONS,CO-OPERATION FGOR SOCIAL CAUSES,CULTURAL EVENTS ETC. THE EXHIBIT DISPLAYS ONLY DUAL FIRST DAY CO