Nils Katajainen was a Finnish fighter pilot who was credited with a total of 35 victories, including 17 on the Brewster Buffalo. He was wounded in action in July 1944, which ended his flying career. He was awarded the Mannerheim Cross.
The model represents the Brewster Model B-239 of SSgt Nils Katajainen of 3/LeLv at Kontupohja during the Winter of 1942.
More completed photographs here: https://inchhighguy.wordpress.com/2022/04/14/hasegawa-brewster-model-b-239-buffalo-of-1lt-hans-wind-in-1-72-scale/