2012 AD., Russia, Moscow mint, 10 Kopeks, KM Y 602a.

Russia, Moscow mint, 2012 AD.,
10 Kopeks (17,5 mm / 1,86 g), brass plated steel (magnetic), 1,85 g theor. mint weight, mintage ? , axis medal alignment ↑↑ (0°), plain edge, steel base electroplated with brass (75% Cu, 25% Zn). Both sides and edge are fully covered, steel base is not visible. Color of the coin is yellow.
Obv.: БAHК - POCCИИ / M / 2012 , (“BANK OF RUSSIA / M“), Saint George on horseback right, slaying dragon below, mint mark below horse´s foremost hoof.
Rev.: 10 / КОПЕЕК , value above stylized vegetable ornament in form of two branches.
KM Y 602a .

Year / Mint Mark / Mintage
2006 М ? Moscow Mint
2006 С-П ? St. Petersburg Mint
2007 М ? Moscow Mint
2007 С-П ? St. Petersburg Mint
2008 М ? Moscow Mint
2008 С-П ? St. Petersburg Mint
2009 М ? Moscow Mint
2009 С-П ? St. Petersburg Mint
2010 М ? Moscow Mint
2010 С-П ? St. Petersburg Mint
2011 М ? Moscow Mint
2012 М ? Moscow Mint
2013 М ? Moscow Mint
2013 С-П ? St. Petersburg Mint
2014 М ? Moscow Mint
2015 М ? Moscow Mint

different mintmarks on lower right side.
"М" - Moscow Mint
"С-П" - St. Petersburg Mint

The coins have ferromagnetic characteristics. Some of the 2015 coins were struck on copper-zinc clad steel planchets but the majority is on galvanic brass coated planchets. Two types of this coin exists:
Type 1 (2006—2014): steel base clad with tombac (90% Cu, 10% Zn) on obverse and reverse side. Edge is partially covered, with steel base visible. Color of the coin is bronze.
Type 2 (2014—2015): steel base electroplated with brass (75% Cu, 25% Zn). Both sides and edge are fully covered, steel base is not visible. Color of the coin is yellow.