A non-cyphered grenade badge was worn by the CEF 245th Bn in which the lower flames went slightly upwards from horizontal. See:
http://www.britishbadgeforum.com/can...e/cef_e245.htm
Andy's badge is not that one. The 87th CEF had a similar pattern with a cypher, as Bill notes, as well as one with "pointier" flames:
http://www.britishbadgeforum.com/can...ce/cef_e87.htm
Could the one Andy is showing be a 1920's Winnipeg Grenadiers badge?
Cheers, Ian.