varying silver content in US Mint coins
HATTRICK
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https://coinworld.com/news/us-coins/mint-official-explains-weight-differences-for-silver-proof-set
The mint says the silver content shown on their website was / is either "NOMINAL" or "LOWER SPECIFICATION LIMIT" and not "EXACT" at least on some coins. Is this true of all silver or even gold coins ?
" If you push something hard enough, it will fall over. " The 1st Law of Opposition from The Firesign Theater
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Comments
There is variation in any manufacturing process. Reference
"Nominal" is the target weight; the "specification limit" represents the boundary of acceptability.
Nominal weight is specified, but I wish they would give +/- tolerances. Of course, that would open the door to everyone checking weights and scale variations/tolerances. Cheers, RickO
If I understand the article correctly, the plan going forward is to "list" all of the precious metals in troy ounces, as opposed to grams.
In the subject case, they also switched from specifying the "nominal" weight to the "lower spec limit" (i.e., the minimum amount of silver in each coin).
@MetroD ... Thanks.... Even specifying the lower limit would be good.... That allows the upper end to float. Low weight could also be the copper et al. Cheers, RickO
In my opinion saying nothing implies actual content, If the mint is using "nominal" or "lower spec limit" it should be noted as such.