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to 
U.S. OFFICE OF PUBLIC ROADS AND RURAL ENGINEERING 
ROAD ECONOMICS 
DETAILS 
PORTABLE CONVICT CAMP BUILDING 
SCALE, It* 1-0 
J&-?<a**£***4<>_ 
HIGHWAY ENGINEER 
rm 
APPROVED 
CHIEF, ROAO ECONOMI 
=£G3E 
