Most valued modern coins.

If we talk about modern numismatic. We of course have to say about "Tiffany Art" coin series. It seems to me that exactly these series brought to the modern numismatic a new life.
When the market of silver and gold commermorative coins began to rise, there was a supply surplus . After investment coins program there was a huge amount of other coins that for numismats was a problem to decide what to collect. Every Mint house made a greate variety of coins with flora and fauna and buildings etc. They was very similar. The coins start to loose numismatic attraction.
And "Tiffany Art" series had been made something different. The series started in 2004. It counted 13th 2 oz silver coins nowadays . And in 2014th began 1-kilo silver coins , counted 4 coins. Most iconic decision was to work with relief and with the details action of the picture. It was not easy way for designers. Comparing 2004th and 2016th we could find a greate evolution of the design . It's as like innovative as applying "90-60-99" standards in model business in 80-90 years. Three coins of these series was given best coin Krause prize. May be its has biggest volume turnover on numismatic market among modern coins. 2004th silver 2 oz coin valued more than 5000 usd, approximately like 5 oz gold coins . Coins older than 2010th cost more than 1700 usd.
Coins titled to the older son of famous jeweler Tiffany, acknowledged to be the leading artist in glass manufacturing. But series dedicated most iconic architects styles of Europe and not only (2016th coins was dedicated to Indian culture -Jainism ).