1988 Tanzania International Red Cross 125th Anniv. 3shilling 16examples inflation cover ? to Japan

Oct. 22nd 1988  CITY DRIVE DARESSALAAM TANZANIA, Double circle cancellation.

The destination of this letter is The U.N. universtity in Tokyo.

I got it as I thought it's a kind of the inflation letters, however there are also possibility that it is just a letter with many low face value stamps.