- the World Silver Price on May 31,1968May 31, 1968
- the World Silver Price on May 30,1968May 30, 1968
- the World Silver Price on May 29,1968May 29, 1968
- the World Silver Price on May 28,1968May 28, 1968
- the World Silver Price on May 27,1968May 27, 1968
- the World Silver Price on May 24,1968May 24, 1968
- the World Silver Price on May 23,1968May 23, 1968
- the World Silver Price on May 22,1968May 22, 1968
- the World Silver Price on May 21,1968May 21, 1968
- the World Silver Price on May 20,1968May 20, 1968
- the World Silver Price on May 17,1968May 17, 1968
- the World Silver Price on May 16,1968May 16, 1968
- the World Silver Price on May 15,1968May 15, 1968
- the World Silver Price on May 14,1968May 14, 1968
- the World Silver Price on May 13,1968May 13, 1968
- the World Silver Price on May 10,1968May 10, 1968
- the World Silver Price on May 09,1968May 09, 1968
- the World Silver Price on May 08,1968May 08, 1968
- the World Silver Price on May 07,1968May 07, 1968
- the World Silver Price on May 06,1968May 06, 1968
- the World Silver Price on May 03,1968May 03, 1968
- the World Silver Price on May 02,1968May 02, 1968
- the World Silver Price on May 01,1968May 01, 1968
- the World Silver Price on Apr 30,1968Apr 30, 1968
- the World Silver Price on Apr 29,1968Apr 29, 1968
- the World Silver Price on Apr 26,1968Apr 26, 1968
- the World Silver Price on Apr 25,1968Apr 25, 1968
- the World Silver Price on Apr 24,1968Apr 24, 1968
- the World Silver Price on Apr 23,1968Apr 23, 1968
- the World Silver Price on Apr 22,1968Apr 22, 1968