1. Corporal. Two chevrons.
2. Staff Sergeant. Face upwards. Four chevrons.
Other ranks, metal rank insignia for wear on the collar of the duty shirt (authorized 1974-1990, now obsolete). Reference: www.rcmpolice.ca.
3. R.C.M.P. Tie pin.
The Royal Canadian Mounted Police (RCMP) or Gendarmerie royale du Canada (GRC) is the national police service of Canada.
The Royal Canadian Mounted Police was formed in 1920 by the amalgamation of the Royal North-West Mounted Police (RNWMP) and the Dominion Police.
The RCMP is commonly known as the Mounties in English (and colloquially in French as la police montée).