All Kennedy halves are 30.6 mm in diameter.
The weight depends on the year and metal composition
1964 (90% silver) = 12.5 gm
1965-69 (40% silver) = 11.5 gm
1971-present (copper-nickel) = 11.3 gm
Kennedy half dollars are 30.6mm in diameter and 2.15mm thick.
Not at all. Remember, at one time the sizes of coins were proportional to their values so a Morgan dollar is (essentially) twice the size of a Kennedy half dollar. Specifically, Morgan dollars are 38 mm in diameter and weigh 26.7 gm when new. JFK halves are 30 mm in diameter and weigh anywhere from 11.34 gm to 12.5 gm depending on their metal composition.
The Diameter is 30.6mm, thickness is 2.18mm at he rim.
No. Half a centimetre is not the same size as half a kilometre.
11x12
Kennedy half dollars are 30.6mm in diameter and 2.15mm thick.
All Kennedy halves are 30.6 mm in diameter. The weight depends on the year and metal composition 1964 (90% silver) = 12.5 gm 1965-69 (40% silver) = 11.5 gm 1971-present (copper-nickel) = 11.3 gm
The 1988-S proof Seoul Olympics silver dollar has a current retail value of $15.00
Not at all. Remember, at one time the sizes of coins were proportional to their values so a Morgan dollar is (essentially) twice the size of a Kennedy half dollar. Specifically, Morgan dollars are 38 mm in diameter and weigh 26.7 gm when new. JFK halves are 30 mm in diameter and weigh anywhere from 11.34 gm to 12.5 gm depending on their metal composition.
The size of a silver dollar, minted by the US Mint is: diameter: 38.1mm; weight is: 26.73 grams.
Please! Much more information is needed. A date and mintmark?
Post new question with more information such as size, shape and if it's gold or silver.
No. In the 20th century the U.S. minted true silver dollars (i.e. made of 90% silver) from 1901 to 1904 and again from 1921 to 1935. A trial run of new dollars was made in 1964 but they were never released and all are presumed to have been melted. By 1965 the price of silver had increased to the point where silver coins were worth more than their face value so not only was dollar production again suspended, new lower-denomination coins were struck in cupronickel instead of silver. From 1971 to 1978 a large-size (38.1 mm) cupronickel dollar coin was minted but it only circulated in a few regions of the country. In 1979 the coin was downsized to 26.5 mm, and in 2000 the metal was changed to the gold-colored brass that's used in the current Sacajawea and Presidential dollar coins.
Peace silver dollar specifications: .77344 troy ounces, 38.1mm diameter.
is it the biggest
It sounds like someone glued or soldered a U.S. half dollar to a British pre-decimal penny. The two coins are very similar in size. It's an odd novelty.
Silver half dollarsFlowing Hair 1794--1795Draped Bust 1796--1807 Draped Bust, Small Eagle 1796--1797Draped Bust, Heraldic Eagle 1801--1807Capped Bust 1807--1839 Capped Bust (Large Size), With Motto 1807--1836Capped Bust (Small Size), No Motto 1836--1839Seated Liberty 1839--1891 Seated Liberty, No Motto 1839--1866Seated Liberty, With Motto 1866--1891Barber 1892--1915Walking Liberty 1916--1947Franklin 1948--1963Kennedy 1964 (General circulation issue) the last 90% silver half-dollar for circulation, contains 0.36169 oz. net silver per coin, or 7.234 oz. silver per roll)Kennedy 1992--present (silver proof sets available