This image shows the main tower and one of the contemporary aircraft serving the Kent County, Michigan airport.
The description states:
KENT COUNTY AIRPORT…Serving Grand Rapids and Western Michigan. First airport in the United States to pioneer the single runway landing strip. Michigan’s most complete airport.
–The airport has since been extensively upgraded with the increase in air travel and is now called the Gerald R. Ford International Airport. The plane being serviced appears to be a Douglas DC-4 operated by the now-defunct National Airlines. It was acquired by Pan Am Airlines in 1980, which itself ceased operations in 1991.
This image likely dates from the 1950s.