Obverse: Depicts an eagle with a closed crown, on the chest the monogram RW II (Rex Wilhelm II) placed on a shield with a closed crown, and on the edge of the button there is a single, convex rim. Reverse: completely corroded The button belonged to an official of the Kingdom of Prussia, most likely at the state level or a civil service official, and dates from 1889-1918. Interesting fact At different times there were different monograms on the eagle's chest: monogram R (actually it should be braided RF, but only the letter R is visible) - early 19th century, FR monogram - mid 19th century, monogram RW II - years 1889-1918(?). Interesting fact This type of buttons also exists in a version with a trumpet under the coat of arms (only with the FR monogram).