Mint art.
The lowest denomination of coins of the Kingdom of Poland. A short episode, during which coins with denominations from 1 to 20 fenig were minted in two vintages (1917-1918). A period described by Marcin Zmudzin as the ugly duckling of Polish minting in the 20th century, due to the simplicity of the designs and the non-precious bullion used for their issuance.
Variety with large stars on the sides of the larger date.