Corona, Fahrradwerke und Metallindustrie Aktiengesellschaft. Aktie über Eintausend Mark Deutsche Reichswährung. Dated at Brandenburg a. H., im Mai 1923, No. 05662, for 1000 Mark Deutsche Reichswhrung. Issued and punch cancelled, certificate is in good condition, with a fold mark and light edgewear. 36 x 26 cm. 

Corona was a German bicycle, motorcycle and automobile manufacturer. The company was founded in 1891 as a bicycle factory in Brandenburg, but started manufacturing motorcycles in 1901 and automobiles in 1905. The company was liquidated in 1932.