Russian Partition, Nicholas I (1825-1855), 15 kopecks/1 gold 1838 MW, Warsaw mint.
variety with large numerals in date, patina, tarnish
silver, weight 3.14 grams, diameter 19.7 mm, mintage 3,617,048 pieces
Literature: Plage 410, Bitkin 1171, Kopicki 9407 (R), Berezowski 2.50 zl.