Numismatists are serious coin collectors who know all about coins. Most numismatists also grade and catalog coins while some are also in the trade of buying and selling coins.
0
In earlier days, numismatists were also involved in barter trade and knew about the value of various monies, precious metals, gems and products. They formed a society in the 19th century and started publishing a journal on coins that highlighted the various collectibles.

Like all collectors, numismatists deal with the upper crust. People with money invest in rare coins and make these part of their collection. A logo design for a numismatist has to be appealing to the high heeled.