| http://www.w3.org/ns/prov#value | - 5Table 1 shows the results obtained for the gold coins analysed by SR-XRF. The ternary diagram in Figure 2a shows that the base alloys used for the fabrication of the obsidional coins differ from those used in the Rio de Janeiro and Bahia mints; these two mints were issuing coins, except one, of equivalent fineness and close silver and copper contents.
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