The 2 silver medals are sterling and other 2 are brass. This ribbon bar has 4 medals on it.

1. WWII George VI The 1939-1945 Star Crown Bronze War medal, value of~ $49.13

2. The Atlantic Star awarded to commemorate the WWII Battle of the Atlantic between 3 September 1939 and 8 May 1945, value of ~$20.63

3. Canada Volunteer Service Medal (1939-1947), Silver, value of ~$46.86

4. British WWII War Service Medal (1939-1945). Canadian issue struck in silver. 1939 1945 War Medal George VI British WWII, value range $32.09-113.5