I think shakers were not kept under the same conditions;air-borne sulfurs and chlorides cause a yellowish cast on the sterling silver.
Zinc in the alloy can turn to stable salts when exposed to air, but all zinc salts are white.
If I undesrtood well, all three shakers are marked sterling; show us the marks if possible.
In my opinion your middle shaker has been polished aggressively with an abrasive tool, such as a scrubby sponge, a brush, or steel wool, creating unsightly scratches on the surface. It appears that the shaker also has been dipped in a tarnish-removing liquid, which has left a “skinned” and cloudy appearance. Such harsh chemical products should never be used on fine silver. I believe this chemical product is also responsible for the colour of the interior.
I do clean it with a homemade solution and a 100% cotton cloth. Nothing stringent, just baking soda, salt, aluminum foil, and hot water. Works like a charm!
dognose wrote:Such a method will produce long-term damage to your silverware as it is removing a small layer of silver, in different depths, every time you do it and you will be left with an 'orange-peel' effect on the surface.
oel wrote:Hi, I understood the sulfide is transferred to the aluminium foil and the silver stays on the object. Indeed the silver shine could become a bit dull. I have done it once on a little silver box, with a thick black tarnish of silver sulfide.
oel wrote:3 Ag2S + 2 Al --/> 6 Ag + Al2S3
3 silver sulphide + 2 aluminium --/> 6 silver + aluminium sulphide
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