"Laboratory Studies of Some European Artifacts Excavated on San ...

Brill, R. H., et al. "<strong>Laboratory</strong> <strong>Studies</strong> <strong>of</strong> <strong>Some</strong> <strong>European</strong> <strong>Artifacts</strong> <strong>Excavated</strong> on San Salvador Island."
Columbus and his World: Proceedings <strong>of</strong> the First San Salvador Conference. Ft. Lauderdale, FL:
The Station, 1987. pp. 247-292. © Gerace Research Centre. Used with permission. www.geraceresearchcentre.org
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207 I 206 RATIO
Fig. 12. Lead-isotope ratios <strong>of</strong> Spanish billon coins <strong>of</strong> Henry IV <strong>of</strong> Castile. All except
three in upper right are blancas minted between 1471-74. Three in upper right are
higher denominations. Shaded square is blanca from San Salvador.
Rakow Research Library, The Corning Museum <strong>of</strong> Glass - http://www.cmog.org