From: A practical hybrid approach to the problem of surveying a working historical bell considering innovative measurement methods
Measurement point number
Element
% of atomic mass
1
Cu
21.43
C
70.36
Sn
1.77
O
6.44
2
28.54
6.34
57.87
7.25
3
24.76
64.84
6.37
3.84
Sb
0.19
4
28.88
63.68
S
7.44
5
Zn
24.46
57.29
13.12
2.88
2.25