In general, it is possible to change the acquired denomination in preparation for buying or selling. For this purpose, your own pieces can be sent to the German Osmium Institute. The pieces are checked for authenticity and then exchanged for the desired denomination free of charge, provided the necessary pieces are available. In this way, small pieces can be converted into large ones and if only a small quantity is sold, a large piece can be exchanged for several small pieces.
Round (30-100mm)
Rectangular (2-40mm)
Round & hexagonal (18mm)
Square (1-9mm)
