1958 Millers Jewelers Lucky centennial coin totem pole, jewelry store discount

...token, Vancouver BC A vintage brass advertising / 10% discount token for Millers Jewelers. The one side reads " Your Credit is good - save 10% - Millers Jewelers - 5 stores - lucky centennial coin", the other side reads "100 years of progress - 1858 * 1958 - British Columbia" With lots of discoloration and wear. It is lovely to note someone held onto this token for as long as they did. Were they hoping to use it when picking out an engagement ring? Size: 7/8 inches diameter (2.5 cm)