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
Collect call could be provided, at a higher fee, only on operator-assisted connections: the person-to-person call, in which there is no charge unless a designated person is available.) Several companies will place collect calls, in competition with local service providers. Collect calls can be made from almost any public pay telephone in the world by following directions posted on or near the phone. Collect calling has been in constant decline since the advent of cellular phones, VOIP products, and Skype, which have brought greatly reduced or free domestic long distance and international calls. While Mother's Day has the highest number of phone