The autonomous region called the Trans-Dniester Republic issued a most unusual set of coins in 2014. They are made of a composite material, are semi-transparant and have a textured surface. This was originally part of the Russian Federation but is now ‘independent’. They are a plastic type material but with a hardness that produces a stone like sound when rubbed. They were issued by the Trans-Dniester Republic Bank and there are 4 denominations. 1 Rouble circular, 3 Roubles square with rounded corners, 5 Roubles pentagon shaped with rounded corners and 10 Roubles hexagonal with the rounded corners. They have the rounded corners for ease of use and for ease of machine readability at high speeds. These were an experiment and who knows if they will continue to issue them. But we thought that they were very interesting and rather well priced so we obtained 100 sets of them. Supplies are limited.