The description on the front of the card:
Upper Corridor of Library Wing, Statues of Personal Friends of McKinley,
McKinley Memorial, Niles, Ohio
The William McKinley Birthplace Memorial Library and Museum was built in 1915 in Niles, Ohio. The library is a public library, and the museum features exhibits about President McKinley.
Estimated Date: 1950s
Series: William McKinley Memorial
Era: White Border Era
Artvue Post Card Co., 225 Fifth Ave., New York, N.Y.
The Artvue Post Card Company, based in New York City, operated from 1948 to 1963. Though primarily known for producing black and white postcards during the 1950s.
Read more about the The Artvue Post Card Company
Rights Info: Most likely public domain due to inadequate copyright statements, but it would be best to credit the original publishers and distributors.