Science > Metals > sterling, silver, silver plated > brand names > identification

I have 5 pieces of antique sterling. They are marker sterling  = .925 silver.

Then I have 15 pieces of flatware, spoons, forks, knives.
I see silver plated on some, only brand names on others like Wm. Rogers and Sons, H&T Mfg., Rogers and Bro., Vernon, E.E. & S.C. Bailey, etc.

How much silver is in silver plated?
How to tell about the ones that are not marked as silver plated?

Thanks.
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nickg5Asked:
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dhsindyRetired considering supplemental income.Commented:
.925 Sterling Silver is 92.5% silver and 7.5% some other metal and/or additive usually copper - this is the minimum standard.

Fine Silver is 99.9% silver and is to soft for making useful objects.

Silver Plate varies depending on the processed used to manufacture it.  Recent item are electroplated which can be very thin.  The value depends as much on the condition of the item.
nickg5Author Commented:
I sold my sterling for $22.20 per troy.

They did not want the plated.
My plated are quite tarnished being 80 years old.
The one article says maybe $1.00 - $5.00 per piece.
nickg5Author Commented:
thanks
nickg5Author Commented:
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