Heritage Science

Table 1 Lead isotope data of lead white samples of Girl with a Pearl Earring

From: Beauty is skin deep: the skin tones of Vermeer’s Girl with a Pearl Earring

Sample	Description	²⁰⁶Pb/²⁰⁴Pb	2SE	²⁰⁷Pb/²⁰⁴Pb	2SE	²⁰⁸Pb/²⁰⁴Pb	2SE	²⁰⁷Pb/²⁰⁶Pb	2SE	²⁰⁸Pb/²⁰⁶Pb	2SE
4	Upper paint (pink flesh tone)	18.4751	0.0008	15.6365	0.0010	38.4428	0.0022	0.84636	0.00004	2.08075	0.00004
7	Ground	18.4697	0.0009	15.6328	0.0022	38.4185	0.0028	0.84623	0.00004	2.08005	0.00006
16a	Ground	18.4865	0.0008	15.6403	0.0010	38.4638	0.0020	0.84605	0.00004	2.08063	0.00004
16b	Ground	18.4828	0.0008	15.6373	0.0010	38.4519	0.0020	0.84605	0.00004	2.08040	0.00004
39 I	Upper paint (dark flesh tone)	18.4769	0.0008	15.6367	0.0010	38.4457	0.0016	0.84628	0.00004	2.08071	0.00002
39 II	Ground (dark flesh tone)	18.4810	0.0008	15.6354	0.0010	38.4473	0.0016	0.84602	0.00004	2.08034	0.00004
40 I	Upper paint (light pink flesh tone)	18.4785	0.0008	15.6397	0.0010	38.4505	0.0018	0.84637	0.00004	2.08080	0.00004
40 II	Underlayers (light pink flesh tone)	18.4763	0.0008	15.6366	0.0012	38.4410	0.0020	0.84631	0.00006	2.08053	0.00004
Long-term VU			2SD		2SD		2SD		2SD		2SD
CPI		17.8994	0.0031	15.5656	0.0034	38.0186	0.0113	0.86962	0.00009	2.12398	0.00033

2SE is the two standard error of the individual analysis of the sample. Under ‘long-term VU’ is reported the mean of the in-house standard; 2SD is the two standard deviation obtained over a period of 3 years

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