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The First Edition of Modern Canadian Doubled Die Varieties is a comprehensive catalogue written by John O'Connor, a numismatist from Kawartha Lakes Ontario. In late 2018 after conversing with like-minded experts and collectors regarding the lack of publications, research, or documentation for this type of die variety, John decided to take on the task of documenting, finding, and occasionally making new discoveries of doubled dies on Canadian coins intended for circulation and proof-like sets.
Inside the first edition, readers will find detailed images of how these types of die varieties can occur during a process known as hubbing while also showing the differences between common forms of worthless doubling and genuine doubled die varieties. There are 57 detailed listings with price charts, mintage reports, compositions, weights, and over 100 colored images to use for comparison purposes while searching for these oftentimes scarce varieties.
Additionally, there is an extensive reference list containing 173 doubled die listings across all seven denominations of Canadian coins with some information cited from well-known collectors, experts, and websites that have given the author proper written permission to reference individual listings, listing numbers, websites, images, coin community forum posts, and written information so that collectors new and experienced can have access to presumably the largest Canadian doubled die reference list to date.
Includes 57 Detailed Listings for:
1 Cent - from 1941 to 2008
5 Cents - from 1965 to 2020
10 Cents - from 1951 to 2012
1 Dollar - from 2012 to 2022
2 Dollars - for 2012
Includes 173 Detailed Reference Listings for:
1 Cent - from 1941 to 2008
5 Cents - from 1947 to 2020
10 Cents - from 1951 to 2012
25 Cents - from 1953 to 1972
50 Cents - from 1943 to 1996
1 Dollar - from 1945 to 2022
2 Dollars - from 2011 to 2021
