3 Kopecks 1848 MW. Warsaw. Bit 847 (R2), B 223 (RR), Ilyin (20 Rubl.), Petrov (50 Rubl.), Konros 2200 (R3). Very rare. Authenticated and graded by NGC MS 64 BN – Ex A. Prokop Collection. Milk chocolate brown with soft orange highlights. Very Choice Brilliant Uncirculated. Ex ‘Antonin Prokop Collection’, Part 2. Aurea Numismatica Praha, Prague, May 17, 2003, lot 290.