Very rare photo showing a German business during III Reich forbidding the entry to Poles and making clear it was a "German business" during German occupation of Poland. We can see clearly how many Aryan businesses and shops were marked as "forbidden for Poles" with panels or signs like that one "Zutritt für Polen verboten", since they were considered by Germans as Untermenschen or subhumen. And another sign "Deutsches Geschäft" tells us it was a "German business". Rare to see in photos.