Vs. In 1910, there was a change in weight for Canadian quarters from 5.81g to 5.83g. I was just wondering if there is a story behind this, similar to the "arrows" coinage in the USA in the 1850s. Thanks DATE: 1870 to 1910 COMPOSITION: .925 Silver, .075 Copper WEIGHT: 5.81 grams DIAMETER: 23.62 mm DATE: 1910 to 1919 COMPOSITION: .925 Silver, .075 Copper WEIGHT: 5.83 grams DIAMETER: 23.62 mm