| 2.63 g|
| 20 mm|
| 20 Bohemian and Moravian haleru|20 haleru (World War II Bohemian and Moravian coin) Wikipedia
The 20 haleru coin was minted in the German protectorate of Bohemia and Moravia between 1940 and 1944 during World War II. It is worth 1/5 or .20 of a koruna. Made entirely of zinc, the 20 haleru is an emergency issue type, similar to the coins of other German occupied territories.