1970-D Kennedy Half Dollar (40% silver)

Legacy ColCon description (source information; not independently verified): Mintage 2,150,000. The composition of the 1965 Kennedy Half Dollar is 40% silver and 60% copper. The coin weighs 11.5000 grams, therefore the silver weight is 4.6000 grams or 0.1479 Troy ounces

Connections

Struck at
Denver Mint
Produced by
United States Mint

Material construction

Clad specification; not a specimen assay or condition assessment.

Core
copper (percentage unresolved) · silver (percentage unresolved)
Nominal mass composition within this layer; not a specimen assay. Partial composition.

s.2; s.3

Outer cladding
20% copper · 80% silver
Nominal mass composition within this layer; not a specimen assay.

s.2; s.3

Whole-object aggregate
40% silver
Nominal average mass composition of the whole object; not a specimen assay. Partial composition.

s.2; s.3

Layer thicknesses and mass proportions are unrecorded; no overall composition is calculated.

Issue details

Dated 1970, this Kennedy half dollar is a regular circulation strike with a D mint mark. It has a nominal weight specification of 11.5 g.

Denomination
50¢
Date
1970
Mint mark
D
Series
Kennedy half dollar
Strike
Regular circulation strike
Weight
11.5 g

Nominal issue specification; not a specimen measurement.

s.1

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Example chart
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Synthetic data · not results for this Object

Sources

  1. s.1 — Congress, Coinage Act of 1965, Public Law 89-81, 79 Stat.254–258

    §101(a)(1)(C), p.254 (PDF1); §108(5), p.255 (PDF2)

  2. s.2 — U.S. Mint Annual Report FY1971 (GPO, 1972)

    p.242/TableLVII,1970 half dollar row/note1; PDF254

  3. s.3 — U.S. Mint Annual Report FY1978 (GPO; transmitted May 1979)

    p.47/Table3 note2, p.48/Table4 silver-clad half; PDF59–60; applicability p.45/Table1/PDF57