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- - Gold coin trouble (http://goldismoney.info/forums/showthread.php?t=165975)

skirnir | 08-13-2007 08:41 PM
Gold coin trouble The 20-mark coin came in the mail a few days ago; my digital scale tells me it weighs 7,92 grams when the coin book says it is to weigh 7,965 grams. Is this normal in circulated coins, or does this indicate a counterfeit? Thanks

j-son | 08-13-2007 08:45 PM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 694752) The 20-mark coin came in the mail a few days ago; my digital scale tells me it weighs 7,92 grams when the coin book says it is to weigh 7,965 grams. Is this normal in circulated coins, or does this indicate a counterfeit? Thanks
i think old circulated coins have a tolerance of that amount

RossL | 08-13-2007 08:45 PM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 694752) The 20-mark coin came in the mail a few days ago; my digital scale tells me it weighs 7,92 grams when the coin book says it is to weigh 7,965 grams. Is this normal in circulated coins, or does this indicate a counterfeit? Thanks
45 milligrams can easily wear off of a gold coin.

skirnir | 08-13-2007 09:33 PM
Re: Gold coin trouble Oh good; I do not have experience with older coins and thus didn't know if I was getting a fake or not. My tael bar, kruggers, and 100 coronae are all UNC or AU+, and the 20-mark has certainly seen better days. Thanks for the responses :)

Antonio | 08-13-2007 09:38 PM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 694796) Oh good; I do not have experience with older coins and thus didn't know if I was getting a fake or not. My tael bar, kruggers, and 100 coronae are all UNC or AU+, and the 20-mark has certainly seen better days. Thanks for the responses :)
A worn out silver quarter weighs about 250mg less than a mint one.Where did you get the tael bar?

TomD | 08-13-2007 09:52 PM
Re: Gold coin trouble A fake gold coin is usually going to be off by a bunch, 50% or thereabouts unless the dimensions are large.

Au_Ag | 08-13-2007 09:54 PM
Re: Gold coin trouble Quote:
Originally Posted by j-son (Post 694758) i think old circulated coins have a tolerance of that amount
yep - some of the sovereigns that are supposedly BU vary somewhat. Sovereigns were minted in seven different countries at various times. the Marks I've seen generally seem to have a little tighter tolerances, but I don't have much in the way of circulated. I can believe that a circulated coin with some wear would readily be off that much.

Antonio | 08-13-2007 09:56 PM
Re: Gold coin trouble Remember,the only 2 metals that have the same density as gold are tungsten and uranium.The latter you check with a Geiger counter,the former is so hard and has such a high melting point that making a fake tungsten coin and goldplating it at this time is more expensive than a real gold coin.Making a fake large gold bar with a tungsten core is feasible and would be profitable.

skirnir | 08-13-2007 10:05 PM
Re: Gold coin trouble @Antonio: I got it off a dealer with high feedback on eBay; it's marked 37,5g but it's equivalent to 1 HK tael. I weighed it out and everything; it's legit. Looks like this: http://img504.imageshack.us/img504/9296/c6e51wv8.jpg

HistoryStudent | 08-13-2007 11:34 PM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 694752) The 20-mark coin came in the mail a few days ago; my digital scale tells me it weighs 7,92 grams when the coin book says it is to weigh 7,965 grams. Is this normal in circulated coins, or does this indicate a counterfeit? Thanks
You are okay. Worn coin is all per your remarks. Best wishes, HS by the way - the old foreign coins are fun when they are near spot - plus you get HISTORY. :wink:

skirnir | 08-14-2007 06:32 AM
Re: Gold coin trouble Oh yes, it was fun when I sniped it for $630/oz shipped on eBay :D I may get a sovereign next, but I heard there are many fakes out there, any advice?

qatarman1969 | 08-14-2007 10:57 AM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 694752) The 20-mark coin came in the mail a few days ago; my digital scale tells me it weighs 7,92 grams when the coin book says it is to weigh 7,965 grams. Is this normal in circulated coins, or does this indicate a counterfeit? Thanks
You're ok...that's only 0.6% below spec. I think the Fisch detector for any coin tips at 0.7% below spec to allow for circulation damage. mark

HistoryStudent | 08-14-2007 01:50 PM
Re: Gold coin trouble Quote:
Originally Posted by qatarman1969 (Post 695290) You're ok...that's only 0.6% below spec. I think the Fisch detector for any coin tips at 0.7% below spec to allow for circulation damage. mark
Thanks I forgot I bought all those FISCH Scales. Got to get 'em out again and play! :wink: Hey. I want all you "EBAY" SNIPERS to go away so I can have a LITTLE FUN TOO!

Baldwin | 08-14-2007 03:37 PM
Re: Gold coin trouble Quote:
Originally Posted by Skirnir (Post 695103) Oh yes, it was fun when I sniped it for $630/oz shipped on eBay :D I may get a sovereign next, but I heard there are many fakes out there, any advice?
Buy from apmex. As of yesterday, they are selling sovereigns from $2.50 over spot. The two sovereigns I got from them in my last order was a really beautiful 1925 George V and a somewhat worn 1895 Victoria with the mintmark "M" (Melbourne?). I pad $160 at apmex when gold was $671 (comparable to now). My dealer wants $250. Sovereigns on apmex , like I said, are close to spot and around $160.

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