MMD and SPMD is short mints.
MMD-Moscow Mint
SPMD-Saint Petersburg Mint
The picture above shows how the mintmark appears on the coins.
Newcomers will be at first difficult to distinguish from the MMD coin SPMD.
But over time, you tell at a glance what the mint coin.
Conventional (non-commemorative coins) and commemorative coins chekanyutsya, then one yard, then immediately to the practice dvuh.Po expensive coins, often makes the C-P Mint dvor.Esli one coin chekanyut on two courts, the circulation of coins ppm coincides with a circulation of SPMD.
Place the location of the yard signs on the coins of different things.
On the anniversary, dozens of large, yard sign is located on the reverse under 10
RR
On a small yard sign dozens of well located on the reverse, but in the lower right-hand corner.
On regular rubles yard sign is the obverse, under the right paw double-headed eagle.
The article Commemorative coins 1999 to 2012. written list of commemorative coins and, if indicated on the coin inscription against MMD / SPMD, it means the coin was issued two courtyards.
If there is no such coin against the inscriptions, so only one yard.
* Reverse "tails"
* Avers "heads."
