•4 
'S. 
Novmber 7, 1961 
Perm Caunera Exchange 
943 Pennsylvania Avenue 
Washington, D. C. i 
H 
Centleaneni 
Please complete the enclosed subvoucher for the payment 
ii. 
made by Dr. V/aldo L. Schmitt for the copying of the filiii taken 
■ v - 
on the Smithsonian’s I960 Yucatan Expedition. This is an official 
transaction and is tax exempt. 
Very truly yours 
A. W. Wilding 
Chief 
Supply Division 
