Tarnished silver (silver sulfide) kettle with a circle of tarnish wiped clean. Tarnish forms on silver when it is exposed to hydrogen sulfide in the atmosphere | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Amos, James L. |
Taille de l’image : | 6150 px × 4870 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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