The back reads,
WPOM - 1470 - 5000 WATTS / ABC NETWORK / Box 10318 Fort Lauderdale, Fla.
Featuring — John Cameron Swayze, Paul Harvey - Alex Dreier - John Clark, plus ABC News Team
White Sox Baseball - Notre Dame Football - High School Sports
Don McNeill's Breakfast Club
FRONT
News Car - 24 hour coverage Remote Wagon - Prices on Request
WPOM was not an ABC radio affiliate until 1961 ("Syracuse Addition Brings ABC Radio Affils to 385", Variety 10/18/1961 p30, PQ 962749405), and it changed call signs in 1963.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.