The coat of arms, that serves as the symbol of the Silesian Voivodeship, Poland, features a yellow (golden) eagle on a blue background.
[1][2] The coat of arms of the Silesian Voivodeship consists of a blue Iberian-style escutcheon (shield) with square top and rounded base.
[2] Such design was recorded in a document from 1222, marked with Casimir's seal, that featured him holding a shield with an eagle on it.
[2] Over time, the coat of arms had been modified, with major change being appearance of the crown on eagle's head.
Eventually, the plans for the establishment of the coat of arms had been stopped by the Invasion of Poland by Nazi Germany, on 1 September 1939, that begun the World War II, and were not picked up back after the end of the conflict.
The proposed design featured a yellow (golden) eagle with risen wings and its head turned to the viewer's left, placed a blue dark blue Heater-style escutcheon (shield)., with square top and pointed base.