http://pec.lib.wvu.edu/record/P37331955-1966Address to shareholders.Serial. Printed Ephemera Collection has: 1955:Apr.27, 1957:Apr.24-1961:Apr.19, 1963:Apr.17-1964:Apr.22, 1966:Apr.20. International Nickel Company of Canada.International Nickel Company of Canada--Periodicals.14256