> These wouldn't count as rare as today he is a rather widely known photographer, but Wikimedia has a large collection of colour photographs from Alfred Palmer,

> These wouldn't count as rare as today he is a rather widely known photographer, but Wikimedia has a large collection of colour photographs from Alfred Palmer, mostly taken from 1941 to 1943 for the American Office of War Information. The photos in the OP seem like a grab bag, they include some of those photos (like this one: https://commons.wikimedia.org/wiki/File:M-4_tank_crews_of_the_United_States,_Ft_Knox,_Ky.jpg https://commons.wikimedia.org/wiki/File:M-4_tank_crews_of_th...).