benjmurts Posted December 26, 2018 Share Posted December 26, 2018 (edited) A friend of mine has a Gold Mexico 50 Pesos 1821-1947 37.5 gram coin that has been in his family awhile. I noticed a spot on the front and thought it was odd so I weighed it. It weighs 41.5 grams. Is it for sure a fake then? Thanks Edited December 26, 2018 by benjmurts Link to comment Share on other sites More sharing options...
Just Bob Posted December 26, 2018 Share Posted December 26, 2018 Our host's World Coin Price Guide lists a total weight of 41.6666 grams for the 50 peso coin. I am not sure of the accepted tolerance, but .166 grams does not seem excessive to me. Link to comment Share on other sites More sharing options...
benjmurts Posted December 26, 2018 Author Share Posted December 26, 2018 Thanks Bob that is great news Link to comment Share on other sites More sharing options...
Just Bob Posted December 26, 2018 Share Posted December 26, 2018 (edited) 1 hour ago, benjmurts said: Thanks Bob that is great news I hope I did not speak too soon. I just did some checking, and the tolerance for a double eagle, the largest gold coin for which I have specs , is only .032 grams. Granted, it weighs more than 8 grams less than the 50 peso, but that amount is still much less than .166 grams. It is possible that a combination of slightly underweight planchet/ slightly off scales/ slight loss from handling could account for the difference in weight, but if there is any doubt in their minds as to authenticity, it may not be a bad idea to have it checked. It is not a cheap coin, and the peace of mind might be worth it. Edited December 26, 2018 by Just Bob grammar Link to comment Share on other sites More sharing options...
benjmurts Posted December 28, 2018 Author Share Posted December 28, 2018 I had it checked and it turns out it is indeed authentic. Weight is good. Thanks again Bob. Link to comment Share on other sites More sharing options...
Just Bob Posted December 28, 2018 Share Posted December 28, 2018 I'm glad it worked out. I must remember to double check my facts and not rely on my memory - at least as far as specs are concerned. Link to comment Share on other sites More sharing options...
BipolarBaby Posted March 25, 2019 Share Posted March 25, 2019 I honestly wasn't convinced this was a real one till the last picture showing the rim. 100% certain after that photo, nice coin! Link to comment Share on other sites More sharing options...
