Belgian Congo 1940 Stanleyville Triple Censored Airmail Sent to the United States Displaying "WITH A.V.2 FORM" Hand-stamp, This Hand-stamp Unrecorded By Heifitz, Likely Applied in Kampala Uganda; Censorship at Belgian Congo, Uganda & Egypt; Although Marked "TRANS-ATLANTIC in Manuscript, the Postage Paid & Transit Marks Show Conclusively that it Was Sent via Asia & the Pacific; VERY RARE (46-1874)