Custom Piece – German flag Empire period 1871-1918 – 3D Print for LEGO minifigure

From this, we can determine that the item is a miniature toy flag representing a historical German flag prominently featuring an eagle, likely from the German Empire period (1871-1918). This is intended as an accessory for a minifigure.

The “Eagle Flag” could specifically refer to:

• The Reichskriegsflagge (German War Flag of the Empire), which you also mentioned for the previous item. This flag prominently features a Prussian eagle in the center of a black Nordic cross, on a white field, with the black-white-red Imperial German tricolor in the canton.
• Another standard or flag of the German Empire where the Reichsadler (Imperial Eagle) is the central and most dominant feature.

Without seeing the image, it’s hard to distinguish if it’s meant to be the same as the previously described Reichskriegsflagge or a variation. However, it’s clear it’s a toy flag for a minifigure, depicting a German Imperial Eagle.

So, you would expect to see a small flag, likely made of plastic or fabric for a minifigure, displaying these historical German symbols, especially a prominent eagle.