The Reading Radio Club
W3BN and W3CCH
ARRL Affiliated February 17, 1922

Call Sign Look Up Sites
ARRL Call Book server
QRZ Call Sign Look Up Page
WM7D Callsign database
Univ of Arkansas Callsign Server

Popular give-away from the 1960-70's.
My copy was Courtesy of the Antenna Specialists Co., Cleveland, OH.