The eagle bow according to the resolution of the insurgent parliament of February 7, 1831. (November Uprising). 44mm diameter. Made of lead(?) lacquered. Multi-part - eagle superimposed and attached to a stuck rivet. Reverse plain, mounted with two pairs of sewing holes. More information and photos of similar pieces available here https://kokardanarodowa.pl/o-mnie/ Very good condition. Very rare!