PAR AVION 
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Director, 
es Netional. Zoological Park.,........ 
: WASHINGTON 9 D.C., 
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AN AIR LETTER SHOULD NOT CONTAIN ANY 
ENCLOSURE ; IF IT DOES IT WILL BE SURCHARGED 
--.. OR SENT BY ORDINARY MAIL. 
Issued by the Postmaster General, East Africa 
Ag 9101 31ND uedo OF, : 
