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pencilvanian
1000+ Penny Miser Member
USA
2209 Posts |
 Posted - 08/05/2007 : 20:49:00
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I posted this under sorting percentages, but it turns out I was wrong about the composition of tombac coins
Pre 1955 nickels of Canda-
1952-1954 Chromium & nickel plated steel
1951 If it had the image of the bicentennial of nickel in the front it was nickel,
if not, it was Chromium & nickel plated steel
1946-1950 nickel
1944-1945 chrome plated steel
1942-1943 Tombac (NOT a nickel alloy,
Tombac content 88% copper 12% zinc, a bronze alloy )
1942 if round, nickel
1922-1941 nickel
1920-1921 SILVER .80%
1919 & earlier SILVER .925
I hope nobody bought a bunch of tombac nickels thiking they were a nickel alloy before I could fix the mistake.
Also, a coin that is at least 80% nickel content is magnetic, if less than 80% nickel, it loses its magnetic properties.
Per "Coin Clinic" by Alan Herbert
Canadian Coins ch 12 p.38-41
I should have chosen "Cut-n-Paste" as a forum name, since that is what I do, mostly.
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Edited by - pencilvanian on 08/05/2007 20:55:22 |
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Canadian Nickel coin content followup
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