In the early days of coin collecting—before the development of a large international coin market—extremely precise grades were not needed. Coins were described using only three adjectives: "good", "fine" or "uncirculated". By the mid 20th century, with the growing market for rare coins, the American Numismatic Association helps identify most coins in North America. It uses a 1–70 numbering scale, where 70 represents a perfect specimen and 1 represents a barely identifiable coin. Descriptions and numeric grades for coins (from highest to lowest) is as follows: