How Many Silver Coins Make Up An Ounce Of Pure Silver ?

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Author	Replies: 12 / Views: 16,977
Ozzie Valued Member Cyprus 349 Posts	Posted 09/22/2010 05:14 am Hi I was wandering how many coins work out to an ounce (36 grams?) of silver? Australia 1966 50c-is 80% silver and weighs 13grams. So that is about 3 or 4 coins to the ounce. Florins? Threepences? Sixpences? Thanks, Ozzie Edited by Ozzie 09/22/2010 09:05 am Report this Post to the Staff

chris12018 Pillar of the Community United States 2130 Posts	Posted 09/22/2010 05:43 am 1 ounce = 31.1 grams Report this Post to the Staff
valdiman Pillar of the Community United Kingdom 575 Posts	Posted 09/22/2010 05:48 am 10.4g of pure silver.3 coins for 1oz roughly. Report this Post to the Staff
sel_69l Bedrock of the Community Australia 21786 Posts	Posted 09/22/2010 07:24 am For ANY silver coin: Multiply the total weight in grammes by the fineness, divide by 31.1036 and get the inverse of that. The result is the number of silver coins needed to make up one troy ounce of fine silver. Just remember that up to 5% of a coin's weight can be worn away, for larger coins the %age is less. Edited by sel_69l 09/22/2010 07:24 am Report this Post to the Staff
Sap Moderator Australia 16809 Posts	Posted 09/22/2010 08:57 am The amount of silver in predecimal coins is directly proportional: that means there's exactly twice as much silver in a sixpence as there is in a threepence, and so forth. That keeps the conversions between denominatons simple, allows you to "mix-n-match" denominations as you need to, and lets you work it out based on a "face value" in pence per ounce. For sterling coins (pre 1947): about 71 pence per troy ounce. Three florins, or 6 shillings, or 12 zacs, or 24 treys, will all give you a shave over an ounce of silver. If you've got crowns, they're 60/71th of an ounce; a crown plus a shilling is a bit more than an ounce, or six crowns is roughly 5 ounces. For .500 fine coins (1947-64): about 132 pence per troy ounce. Five and a half florins, 11 shillings, 22 zacs or 44 treys. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
Ozzie Valued Member Cyprus 349 Posts	Posted 09/22/2010 09:11 am Thanks SAP and others. It's a lot clearer now. Report this Post to the Staff
markn Pillar of the Community Australia 1295 Posts	Posted 09/22/2010 8:11 pm Or you could just use the nifty calculator I programmed: http://www.australian-threepence.co...n-values.htm Report this Post to the Staff
DNA Pillar of the Community United States 2734 Posts	Posted 09/22/2010 8:24 pm Thank you for your coin calculators, markn. I use them all the time. You can calculate multiple denominations at once, unlike many other online calculators. It makes it super easy to see the melt value of US/Canada Sets. Report this Post to the Staff
markn Pillar of the Community Australia 1295 Posts	Posted 09/23/2010 01:57 am Thanks DNA, I've learned a lot since then I've been wanting to improve them but time hasn't allowed for it. I'm wanting to improve the speed of them and allow for you to save your data (so you can check the bullion value of a hoard over time). Maybe I'll find some time soon. Report this Post to the Staff
Ozzie Valued Member Cyprus 349 Posts	Posted 09/23/2010 05:46 am Wow..thats a really handy calculator. Thanks Report this Post to the Staff
TenSense Valued Member United States 364 Posts	Posted 09/23/2010 08:09 am Park the calculations in an excel sheet. It makes life easier. Report this Post to the Staff
Ozzie Valued Member Cyprus 349 Posts	Posted 09/23/2010 09:42 am where can I get an excel sheet like this? Report this Post to the Staff
galen59 New Member United States 17 Posts	Posted 10/09/2010 02:33 am You really have to make a Mexican calculator... Please.. Report this Post to the Staff
	Replies: 12 / Views: 16,977

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