Partial ruthenium which base on the same technique like partial ruthenium but with inverted way of putting ruthenium.
There is possible to produce an invert option of partial gold gilding - choosed areas are not covered with gold layer.
Partial gold gilding is a technique of putting a layer of gold on choosed by customer areas. It works ideally when it covers big areas on the coin.
Main coin's motive has been plated with a ruthenium. This technique works very well when we need to focuse on some specific coin's areas.
Silver medal partial gilded with pink gold. This combination can be described as a light and subtle way of ennobling.
Ennobling technique which contains 4 precious metals is always a challenge - there is no room for any mistakes.