1978 Silver Penny No Mint Mark - Page 2

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Author	Replies: 19 / Views: 18,952	Page: of 2

spru Bedrock of the Community United States 12477 Posts	Posted 07/06/2017 01:02 am @Ladyluck86 I generally agree with those who have said it's plated and has no added value. However, do you have a way to weigh it to 1/10th of a gram? The weight can tell you a lot about what happened to coins. In Memory of Crazyb0 12-26-1951 to 7-27-2020 In Memory of Tootallious 3-31-1964 to 4-15-2020 In Memory of T-BOP 10-12-1949 to 1-19-2024 Report this Post to the Staff
BStrauss3 Pillar of the Community United States 4592 Posts	Posted 07/06/2017 12:37 pm A 0.1g scale isn't accurate enough. In fact, no scale will help, since the tolerance of the planchet itself is so large as to swamp the additional weight of say silver vs. chromium vs. nickel. You need a jeweler or (friendly) we-buy-gold place to shoot it with an XRF gun. Even that will be iffy, as it will penetrate into the copper base. But it should report a significant % of whatever the plating is. -----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ Report this Post to the Staff
biokemist6 Bedrock of the Community United States 12437 Posts	Posted 07/06/2017 1:00 pm The weight of plating would be negligible so +/-0.1 gram scale accuracy is perfectly fine. If the coin weighs ~3.1 grams, then it is safe to assume that it is a normal bronze cent electroplated with an unknown metal post-mint. The composition of the plating itself is completely irrelevant. Report this Post to the Staff
mtuma3 Pillar of the Community United States 744 Posts	Posted 07/21/2017 2:16 pm A lot of gunsmiths use electroless silver and gold to fill in the writing on the barrel, etc... It looks like that is what was used on the coin. Mark ANA Member My7070 Report this Post to the Staff
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