Bulgaria, Kingdom. A Royal Army Air Defence And Chemical Protection Model 1938 "Luftschutz" Steel Helmet, C.1942 Auction Klasse 1939” printed in black

Klasse 1939” printed in black gothic script on the obverse

The fourth postcard illustrates a standing Lieutenant Schleich

(Tuberculosis) found in sputum

signed by the Heilbronn Police Director

Bulgaria, Kingdom. A Royal Army Air Defence And Chemical Protection Model 1938 "Luftschutz" Steel Helmet, C.1942 Auction Klasse 1939” printed in black(Protivovazdushna i Himimicheska Zashtita ). This helmet was produced in Germany for the Royal Bulgarian Army Air Defence and Chemical Protection of Bulgaria unit, the helmet in steel, magnetic, with a rolled edge, with its original field green paint, this design of which is often referred to as the "Gladiator" style. The crown has four honeycomb clusters of seven holes each, two pairs of clusters placed on either side of the helmet for ventilation.