This article is based on letters addressed to Arthur Nordén (1891–1965), from his Norwegian colleaguesAnton Willhelm Brøgger (1884–1951) and Sverre Marstrander (1910–1986) during the Nazi occupation ofNorway, which lasted from 9 April 1940 to 8 May 1945. The letters provide unique historical insights intoBrøgger’s and Marstrander’s activities during the war and reveal how they were engaging with Swedisharchaeological colleagues during the Nazi occupation of Norway. While there is no doubt the relationshipbetween archaeology and Nazism during the Second World War is a complex issue, and one that has beenaddressed by a number of researchers (e.g. Nordenborg Myhre 1984, 2002; Hagen 2002), these lettersreflect particular solidarity between Swedish and Norwegian colleagues. They act as aging photographscapturing unique insight into personal experience and agencies. The expressed solidarity in words andactions strengthened existing collegiality and friendships. The letters add to a more nuanced understandingof the history of our discipline.