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Table 2 Elemental composition of the metal alloys

From: Unmasking a wild man: scientific analysis of Bertoldo di Giovanni’s Shield Bearer in The Frick Collection

Area analyzed Collection Cu Sn Zn Pb Sb Ni Fe As Ag
Body
 Average of 5 areas
Frick 83.60 ± 0.35 0.63 ± 0.04 12.40 ± 0.82 2.19 ± 0.39 0.43 ± 0.02 0.30 ± 0.01 0.20 ± 0.02 0.33 ± 0.03 0.08 ± 0.00
Rivet
 Under proper right foot
Frick 84.80 0.58 11.20 1.90 0.47 0.20 0.28 0.41 0.13
Rivet
 Under proper left foot
Frick 86.02 0.55 10.11 2.10 0.44 0.18 0.20 0.39
Shield
 Gilding-free area on the shield
Frick 82.32 3.69 5.90 5.46 0.71 0.55 0.79 0.43 0.10
Base
 Average of 3 areas
Frick 99.00 ± 0.62 0.03 ± 0.00 0.01 ± 0.00 0.13 ± 0.03 0.21 ± 0.27 0.02* 0.07 ± 0.03 0.26 ± 0.16 0.25*
Figure and shield
 Average of 6 areas measured by pXRF
Liechtenstein 84.86 ± 0.75 0.56 ± 0.15 11.75 ± 1.44 1.74 ± 1.00 0.38 ± 0.08 0.29 ± 0.02 0.19 ± 0.02 0.27 ± 0.05 0.07 ± 0.04
  1. *Ni and Ag were detected in one of the 3 areas analyzed, likely caused by an interference with the silver solder