Roman, Greek, and Byzantine coins of all grades. Specializing in uncleaned coins. As well as coin cleaning supplies and tools.

Don Xavier Calicó Estivill, present manager of X&F Calicó, -founder of the International Association of Professional Numismatists (I.A.P.N.), in Geneva, Switzerland, in 1951- apart from being a member of the I.A.P.N., is also a Founder member of the Asociación Española de Numismáticos Profesionales (A.E.N.P.), Madrid, a Life Protector Founder member of the Asociación Numismática Española (A.N.E.), Barcelona, a member of the Sociedad Iberoamericana de Estudios Numismáticos (S.I.E.N.), Madrid, a member of the Societé d'Etudes Numismatiques et Archeologiques, France, a member of the Societé Suisse de Numismatique (S.S.N.), Switzerland, a member of the Societat Catalana d'Estudis Numismàtics, a subsidiary of l'Institut d'Estudis Catalans, Barcelona, etc.