I am not familiar with Canadian cents. I don't know if this is machine doubling or worn die? Can somebody help me on this please?
Here's all the know varieties & errors . Error/Variety Source 1 cent 1973 - Rotated (#3591) Rotated Die patrick66patrick450 1 cent 1979 - Die clashes (#11) Die clash La Loutre 1 cent 1979 - Filling on leaves (#966) Filling - 1 cent 1979 - Mortar set in the middle of the reverse (#2421) Mortar Set lamothe 1 cent 1979 - Double 79 (#555) Deteriorated Die Lightw4re 1 cent 1979 - Double 9 (#556) Deteriorated Die Lightw4re 1 cent 1979 - Double 979 (#557) Deteriorated Die - 1 cent 1979 - Double 979 and double leaf (#558) Deteriorated Die Lightw4re 1 cent 1979 - Double 99 (#2476) patrick66patrick450 1 cent 1979 - Double queen's back (#1785) Arkanje 1 cent 1979 - Double left leaf (#198) Deteriorated Die Franky 1 cent 1979 - Double K of K.G. (#2429) pascalou1975 1 cent 1979 - Double Regina (#199) Die shift mithrandir 1 cent 1979 - Double queen's face (#155) matisse 1 cent 1979 - Die chip on the right leaf (#3524) Die Chip bidjobi 1 cent 1979 - Die chip on the last A of Canada (#654) Die Chip tonyown 1 cent 1979 - Retarded coin (#65) Retarded Coin mithrandir 1 cent 1979 - Clipped (#930) Clipped Planchet flavoie 1 cent 1979 - Clipped (#1041) Clipped Planchet flavoie 1 cent 1979 - Clipped (#3187) Clipped Planchet ainsivalavie 1 cent 1979 - Uncentred broadstrike (#3133) Uncentred broadstrike - 1 cent 1979 - Struck on a 10 cents planchet (#1724) Wrong planchet philqc 1 cent 1979 - Struck on a 10 cents planchet (#1825) Wrong planchet Cocomath 1 cent 1979 - Off center (#196) Fiston2005 1 cent 1979 - Dot between C and E of Cent (#83) Dots Le cardinal 1 cent 1979 - Dot under the leaves (#3606) Dots Mo.naie 1 cent 1979 - Quadruple die clash under the leaves (#3592) Die clash Mo.naie 1 cent 1979 - Rotated 15% (#538) Rotated Die Lightw4re 1 cent 1979 - Extra metal under the queen's throat (#197) Filling Lightw4re 1 cent 1979 - Triple cocoon (#2085) Die clash Jcc1966
Some looks like MD some DD. Not sure on Canadians though. Is it just me or does this appear to be a clash mark?
But notice some doubling is level with the design, and some is flat, shelf like doubled appearance, lower relief than the design. It's odd thats for sure.