Coin Weight - Coin Community Forum

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Author	Replies: 6 / Views: 1,782
emagry New Member United Kingdom 0 Posts	Posted 04/20/2012 3:23 pm Hello, We have purchased two tubes x 25 1oz silver maple leaf coins. One stack is 786 grams and the other is 781 grams. Admittedly are scales are not top of the range but there seems to be a 5 gram difference in the two stacks. Is this normal? Thank you Report this Post to the Staff

Snooba Pillar of the Community Australia 1360 Posts	Posted 04/21/2012 04:12 am Hello Emagry, Unfortunately I can't help you with your Maple Leaf question. But I can give you a big Welcome! I'm sure you'll enjoy your time spent here. Report this Post to the Staff
jpaiva83 Pillar of the Community Canada 567 Posts	Posted 04/21/2012 10:22 am There should be almost no discrepancy in the weight at all. When I went to the mint for a tour, the tour giver said that each bullion coin is weighed individually, and if its off by so much (don't remember the percentage, but it was really small), the coin is melted back down. As you said, it could be your scale. Report this Post to the Staff
kuh_85 Pillar of the Community Canada 2366 Posts	Posted 04/21/2012 12:40 pm Or maybe the packaging if it's still in the tubes? Report this Post to the Staff
Amaths Pillar of the Community Canada 572 Posts	Posted 04/21/2012 1:46 pm Here is a video of "The Making of American Eagle Silver Bullion Coins", which is loosely related to your question: http://www.youtube.com/watch?v=86WEutE1RCE Starting at 2:14, the tubes are weighed individually. But it doesn't show what's their tolerance of weight differences. Edited by Amaths 04/21/2012 1:47 pm Report this Post to the Staff
jpaiva83 Pillar of the Community Canada 567 Posts	Posted 04/21/2012 9:59 pm @ Amaths, that's one of the point that the tour guide made at the RCM. She said that the RCM weighs each coin individually while most mints weight the tubes. Weighting the coins one by one is much more time consuming but creates a very consistent product. Weighing the tubes alone is quick but it could mean that you could have one coin in the tube at 26g and another at 36g. (I am exaggerating) Not so much a big deal if you are buying tubes, as each 25coin tube should be ~ 777.5g. A bigger deal if you just want one or two coins. You could end up getting too little silver for what you paid for. Edited by jpaiva83 04/21/2012 10:06 pm Report this Post to the Staff
west- canuk Valued Member Canada 497 Posts	Posted 04/22/2012 01:48 am When I first got my scale I was checking out some of my SMLs and some weighed in at just over 1 troy ounce(31.103 gr ) but some as much as 31.46 grams. Yours average 31.44, and 31.24 so that would jive with my results, but as jpaiva83 suggests weigh each individually and see what your results are. Also take into consideration the error tolerance of your scale, if it can handle 25 ounces at a time the +/- error may be a larger percentage. Report this Post to the Staff
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