.148 
 
ONE OF 200 POLK DIRECTORY LIBRARIES 
This Litde Library Can Answer 
945,000,000 Questions 
MANY    TRIPS  AT   YOUR    FINE.TIPS - 
SAVE MANY MILS, INUTZS and DOLLARS 
There'are over 300 of thee directory libraries in the United States. They

are insalled and maintained by the Association of North American Directory

Publishers as part of the service itiven to directory advertisers. 
Think what this means to you in effort, time and money saved. You want 
to know the relationship of the signer of a letter to the firm he represents--

the directory library has the answer; someone you vitally need to get in
touch 
with in a distant city has moved; business addrese or firm names have changed

--the directory library has the answer. Public ofcials have been replaced
by 
new elections; location of real estate is desired-Again the directory library

holds the answer. 
Of course you could write or phone for the data you desire, but maybe 
you don t know just who to approac-e directory library has the answer. 
This service is free. for single reference, to the public. 
DETROIT IBRARY 
R. L. POLK & COMPANY 
DIRECTORY PUBLISHERS            MAILING LIST COMPILERS 
ADDRESSING AND MAILING SERVICE 
Polk Directory Bldg., 431 Howard St.                DETROIT, MICH. 
 
(19s) WRIWMT DIRMUTJY 00.1