There have been imitations of Ancient Coins providing there has been coinage. This program will not discover the modern counterfeits (those made in Ancient times), but only the items made in current times for purposes of deception. This is not anticipated to be an end-all monograph on the subject, but it is merely a basic synopsis on validation to assist collectors from being deceived when gaining coins from atypical sources, and to assist them to discover if they have been already wronged. Sadigh Gallery provides genuine ancient artifacts, collectibles, coins, and antiquities at reasonable prices.
These are indications of both forged and genuine coins. There is no alternative for examining:
Weight: The weight of gold and silver ancients is the single most significant indicator of a coin’s legitimacy, and should abide by the standard utilized in prehistoric times, which can be dogged by consulting the ordinary reference for that type of coin.
Edges: Often inspection of the edge will show a ridge around it, indicating that it may be thrown. If there is a flan-crack in the periphery, check if it goes entirely through the coin, and that it is ragged (an excellent sign) rather than even (as if cut). Often cast-coins will have flan-cracks which go only halfway through the edge, and sometimes they begin again on the other side.
Sharpness: According to the experts in Sadigh Gallery, the fine details and lettering on an Ancient Coin should be well-formed and crisp. The size of the letters should be consistent, and under magnification, the edges of the letters, should have the same quantity of wear as the rest of the coin.
Die Axis: The comparative position of one side to another can be indomitable by holding a coin by the edge with forefinger and thumb (held at 12:00 and 6:00), and rotating the coin around to see the overturn. For example, all U.S. coins are struck with an axis of 6:00; the reverse is upturned when you rotate it to one side. Ancient coins were generally (but not always) constant in their die-axis, and this is generally stated in catalogues.
Surfaces: The fields should be free from pitting but for the coin as a whole shows porosity all through. Also worth probing are the “high points” for outlines of pitting (a sign that it may be cast). Crystallization of the metal (most often perceived on the edges) is generally a good indication of realism, but only experience can distinguish crystallization from decomposition brought on by acids in an effort at artificial aging.
Patina: Developments are being made all the time in the formation of artificial patinas, but they are still a good sign of authenticity. Make sure to check if it is a true patina (which should be moderately thick), and not simply a tinge of the metal itself. Cracks in the patina, while perhaps not attractive, are a good indication.
Style: This is the hardest characteristic to put into words. Essentially, the treatment of the eyes, hair, nose, and mouth of an Ancient coin should be analogous to other published examples, and the posture of the fine details and figures of the garments are also often invented or misinterpreted by the forgers.