I love examining cobs, because every one is different. These were exported in the thousands from the new world. This is definitely pure silver.
- Fact 1: Spanish "cobs" were hastily produced coins of irregular size and shape, but of specific weight, hand-hammered between dies and exported back to Spain from the 1500s to the 1700s.
- Fact 2: Because of corruption and debasement, many of the cobs coming out of Peru in the 1600s were devalued and no longer considered valid currency.
- Fact 3: The weight of a Spanish eight reales cob was set at 423.9 grains, or 27.47 grams of pure silver.
- Fact 4: Because only the weight of a Spanish cob matters, many people would clip the edges off before passing the coin on to another person. Some surviving Spanish cobs are severely clipped.
- Fact 5: Once the cobs made their way back to Spain, they were melted back down to make bars, proper coins, jewelry, and other goods.