Hello, I'm an expert in numismatics, which is the study or collection of currency, including coins like the half dollar. The size of a half dollar can vary slightly depending on the year it was minted and whether it's a regular issue or a commemorative issue. However, I can provide you with the general dimensions for a standard US half dollar coin.
A typical US half dollar coin has a diameter of
1.205 inches (about 30.6 millimeters) and a thickness of
0.093 inches (about 2.37 millimeters). The weight of the coin is approximately
11.5 grams. The design on the obverse (front) of the coin traditionally features a portrait of
Liberty, while the reverse (back) has changed over the years but often includes an
eagle.
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