As seen in Lakey’s post of the catalog page, I believe that Stoeger’s imported only the “high-end” models 35 and 50 after the war. As far as I know the guns were not customized beyond that nice big gold “Peerless” stamping, but I believe all their Diana rifles were in .22 caliber only. I have a Peerless 35/b, and 50M, and both are .22.
Stoeger’s most famous pre-war Diana rifle imports were the model 45 underlever, and its legendary militarized big brother, the model 58.