Russian Partition, Nicholas I (1825-1855), 25 kopecks/50 groszy 1844 MW, Warsaw Mint - VERY RARE coin.
One of the rarest silver coins of the post-partition period, missing from most numismatic collections of the period, of UNKNOWN
LAYOUT.
silver, weight 5.02 grams, diameter 24.3 mm, mintage ? (unknown)