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Figure 2
The two quattrini of Siena studied. At the left a genuine quattrino, at the right the counterfeit one found at the Godano site.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 4| July 2026| Pages 1198-1205
https://doi.org/10.1107/S1600577526005771
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