This undated postcard from Kreiman’s Lyceum News & Book Store sports an illustration of Park Point in the vicinity of South Tenth Street, referred to as “Tenth Ave.” on the front of the card. The 72-degree temperature is cited as proof Duluth is “the air-conditioned city.”

The caption on the back reads:

Well named the “Air-conditioned City,” Duluth has an average summer temperature of but 62.5 degrees. The cool climate, scenic beauties and recreational facilities of this picturesque northern resort city make it a welcome haven for vacationists and hay fever sufferers.