Old Russian money

The following calculator is interesting in that it translates the ancient Russian monetary units (such as the ruble, hit the jackpot, polushkas, money) to today, already familiar to us rubles and kopecks.

Testing, as we see it will hit the jackpot 5 15 cents, to correct calculator found, you need to put in a field that you do not need to zero. Then all will be right.

Translation vintage Russian money in rubles and penny
 The amount: