Good Lord,
Seeing that Kelvinator brings back so many great memories! My Great Uncle & Aunt had that exact same fridge. IIRC they bought it new circa 1947-1950, and took it with them when they moved off the farm in 1960, and into the house they built in town. That baby was so quiet, you had to stand next to it to hear it run. It was still purring when Aunt Alvera passed away in 1987. Could you post a pic of the interior?