Well, I can tell you with 100% certainty that they are not 100%. In 1967 they made 50% and 80%. They both weigh the same 2.33g and have the same diameter 18mm. It has been my experience over the past 40 years with them, dealers treat them all like a 50% ers. Todays melt value would be approx $0.6367 each.
Thanks. I realized my mistake that they were never 100% right after I posted, but didn't bother to edit. Still, I would really like to know if there is some way to tell the difference. Some kind of magnet test, anything? Anyone????
2000–present 1.75 g 18.03 mm 92.0% steel, 5.5% copper, 2.5% nickel plating 1979–1999 2.075 g 18.03 mm 99.9% nickel 1969–1978 2.07 g 18.03 mm 99.9% nickel 1968 2.07 g 2.33 g 18.03 mm 18.034 mm 99.9% nickel (172.5M) 50% silver, 50% copper (70.4M) 1967 2.33 g 18.034 mm 50% silver, 50% copper (30.6M) 80% silver, 20% copper (32.3M) 1920–1966 2.33 g 18.034 mm 80% silver, 20% copper 1910–1919 2.33 g 18.034 mm 92.5% silver, 7.5% copper 1858–1910 2.32 g 18.034 mm 92.5% silver, 7.5% copper This is copy and pasted from Wikipedia
