Numismatist noted numismatist who was not an avid collector, and King Farouk I of Egypt was an avid collector who had very little interest in numismatics. Harry Bass by comparison was a noted collector who was also a numismatist. The second group are the coin dealers. Often called professional numismatists, they authenticate or grade coins for commercial purposes. The buying and selling of coin collections by numismatists who are professional dealers advances the study of money, and expert numismatists are consulted by historians, museum curators, and archaeologists. See, for example, the International Association of Professional Numismatists (IAPN) and the British Numismatic
Baseline Study but it aims to collect a much larger amount of data covering a broader array of topics than its predecessors. De-identified Project Baseline study data will be available to qualified researchers for exploratory analysis in the future. Qualified external researchers may apply through applications reviewed by the Proposal Review and Publications Committee and Scientific Executive Committee. The Project Baseline study is the first initiative of Project Baseline, a broader effort designed to develop a well-defined reference, or "baseline," of good health as well as a rich data platform that may be used to better understand the transition from health to