40.1 MB (5.1 MB compressed)
4353 x 3221 pixels
36.8 x 27.2 cm ⏐ 14.5 x 10.7 in (300dpi)
JIM AMOS / SCIENCE PHOTO LIBRARY JIM AMOS / SCIENCE PHOTO LIBRARY
Tarnished silver kettle. Silver tarnishes slowly as sulphur compounds in the atmosphere react with the surface to form black silver sulphide (Ag2S).
Model release not required. Property release not required.