As an expert in numismatics, the study of coins, I can provide you with the specifications of a US half dollar coin. The size of a half dollar can vary slightly depending on the specific design or series it belongs to, but generally, it is a substantial coin. The diameter is typically about 1.205 inches (30.6 millimeters), and the thickness ranges from 0.077 to 0.088 inches (1.95 to 2.24 millimeters). The weight of a half dollar is approximately 11.5 grams. The edge is usually reeded, meaning it has a grooved design to help distinguish it from counterfeit coins.

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The half dollar, sometimes referred to as the half for short, is a United States coin worth 50 cents, one-half of a dollar, and is the largest United States circulating coin currently producedin both size and weight, being 1.205 inches (30.61 mm) in diameter and .085 inches (2.15 mm) in thickness, and is twice the ...read more >>