Embossing is produced on the workpiece consisting of two metals: brass ring, inside which is inserted a copper-Nickel disk. The obverse and reverse sides have a protruding on the circumference of the piping.The obverse of the coin
in the middle of two lines with specified amount (the number "10" underneath the word "РУБЛЕЙ" below there is a sign of the Saint-Petersburg mint
(consists of letters "СПМД". Inside the figure "0" alternately when changing the angle of inclination can be seen the number "10" and the word "РУБ" On a circle above the inscription "БАНК РОССИИ" at the bottom the year of issue "2009", at the left a Laurel branch, right to oak.The reverse of the coin
depicts the panorama of the left Bank (historic) part of town, in the background to Gagarin bridge across the Oka river. At the top is placed the coat of arms of Kaluga. On the yellow ring at the top circumference has a recessed inscription "ДРЕВНИЕ ГОРОДА РОССИИ" the bottom convex inscription "КАЛУГА"between the two triangular cutouts.
Artist - A. D. schablykin, sculptor - A. I. Molostov. The coin is issued on 1 June 2009.
Kaluga is known from 1371 years, though the city existed earlier. In the period of feudal fragmentation of Rus was a border town, a few times thodisi into the possession of Lithuania. Today it is a major tourist centre with a rich cultural heritage. Besides numerous monuments, there are the second largest in the country, the space Museum and the house in which Tsiolkovsky lived. In the surrounding area is home to several important monasteries.
There are a variety of coins with the mark of the Moscow mint