| Author |
 Replies: 12 / Views: 3,155 |
|
|
Valued Member
United States
420 Posts |
Hello,
How would one calculate the amount of silver (in ounces) that is contained in a roll of silver coins without actually having to weigh the roll itself? Is this even possible?
Thanks,
Rich Rich M. - Collector since 2008
|
|
|
|
Valued Member
United States
110 Posts |
You have to know how much silver is in one coin..than times by the number that is in the roll. Each Mercury dime contains 0.0723 troy ounces of silver so there would be 3.615 ounces of silver in a roll. Edited by Gforce
10/15/2010 12:52 pm
|
|
Valued Member
United States
364 Posts |
PM me, dude. I'll send you a copy of a spreadsheet if you need it, but basically I built an Excel file that does all the math for me using the values of a well-known silver coin valuation site. I can even enter wear % estimated on the coins and have a nice little read-out showing total troy ounces, current value, etc. The sheet has a entry field for current spot price, which will instantly re-calculate the value of an entire hoard based on number of coins present.
|
|
Valued Member
 United States
420 Posts |
Hello,
Do you have to weigh the single coin to get the amount of silver or is that information available online somewhere?
Thanks,
Rich
Rich M. - Collector since 2008
|
|
Pillar of the Community
 United States
2448 Posts |
Just look in your " Red Book" for the coin's statistics. Remember, that's for a new coin. Old silver dimes can loose a lot of silver in circulation. If I were you, I'd want the rolls weight (minus the wrapper) and then use the .0723 gram as the multiplier. It still won't be right but at almost 80 cents per gram, the savings will add up over time. BTW, I weighed new and used wrappers for pennies, nickles, dimes, and quarters and was shocked to see that nasty, dirty, greasy old wrappers can weigh up to 2.2 grams. New wrappers were generally .2 to .7 grams lighter. One of my old dime "shotgun rolls" which has with a rolled edge on one end, weighed 1.2 grams. At today's silver and gold prices, it doesn't take long "wrap up" some savings. (ouch!)  OK so I have way too much time on my hands, but who wasn't fascinated by the weight of the ink in their signature in science class. That's what got me thinking about wrapper weights.  |
|
Pillar of the Community
United States
2120 Posts |
one other way, if you know the fineness of the silver/gold coin (% of silver/gold) and the weight of the coin itself, you just multiply the weight of the coin by its fineness. ie: a 27.63g coin that is 83.5% silver (.835 fineness) has 27.63 x .835 = 23.0105g of silver (ASW (actual silver weight)).
same is try for finding fineness from ASW.
ASW divided by the coins actual weight = fineness
23.0105 / 27.63 = 0.835 or 83.5%
(this really only works with coins that arent very heavily worn because the recorded ASW would be lower the more worn a coin)
|
|
Bedrock of the Community
United States
20753 Posts |
As already noted by carmykle older coins can and do loose a lot of weight. I've seen some really worn Silver coins that have lost about 1/4 of their weight. So you should really weigh any old coins for weight. New coins are different of course.
|
|
Valued Member
India
265 Posts |
just check out the krause catalog numbers, then multiply with the number of coins and the weight of silver coins from the catalog.
warm wishes.
|
|
Valued Member
United States
467 Posts |
If you go with "junk" standard. just go .715 x the dollar amount. That will get you close enough.
|
|
Valued Member
United States
497 Posts |
go to https://www. (124) This link is not allowed by the Staff .com and click the silver melt calc. it tells you the value and how many ounces and expected pricing |
|
Bedrock of the Community
United States
12437 Posts |
Quote:
If you go with "junk" standard. just go .715 x the dollar amount. That will get you close enough.
 0.715 is the standard multiplier used by dealers when buying and selling face value lots. $1 face value of dimes, quarters, or half dollars will contain approximately 0.715 oz silver when the coins are in average circulated condition. A roll of 50 dimes($5) x 0.715 oz/$1 face= 3.575 troy ounces silver in one roll. |
|
Pillar of the Community
United States
1801 Posts |
I use this website
(124) This link is not allowed by the Staff .com/
|
|
Pillar of the Community
United States
1801 Posts |
I am very sorry, I did not realize that link would violate the rules. Please accept my apology.
|
| |
Replies: 12 / Views: 3,155 |
|
Posted 10/15/2010 12:51 pm
