India Post has issued different stamps on same or similar subject on different Occasions and Events. The collectors with creativity have made covers with combination of  stamps of such similar Occasions and Events duly cancelled on respective dates. Such covers show the creative efforts of the philatelists.

Here on this official cover, stamp of World Wrestling Championships 1967 dated 12-11-67 and  stamp of XIX Olympic 1968 issued on 12-10-68 are combined on one cover of 12-11-67 with cancellations of respective dates.