40 x 30.5mm. Made of silver-plated brass. Reverse with a very indistinct counter. Lack of original mount - secondary soldered plate. Numeral "4" engraved. Placed on a cardboard backing covered with red cloth, on the reverse a description - 4th Regiment of Legions 1916. Lit. Tomasz Zawistowski, Polish Eagles for Caps in 1900-17, p. 158; Ireneusz Banaszkiewicz, Catalogue of Eagles from the Collection Volume I, p. 49, Good condition.