Poland
Second Republic of Poland (1918-1939)
Rhombus in which an anti-gas mask against a background of clouds, lower the COMMANDANT OF THE HOUSE, lower the bomb and the OPLG LOPP, one-piece badge, mounted on a post, cap signed A. JAKUBOWSKI / WARSAW
white metal, 25.0 x 22.6 mm, 5.65 g (without cap)