1983 d weight question

[fafa3838]

I have found in my collection a 1983 d that weights 2.87 grams. I have weighted several hundred lincolns of this same year and all others are in the 2.48 to 2.59 gr. range. I'll try to post pictures soon I hope

[uglycent]

copper will weigh 3.11 grams, I am not sure what the variance should be for zinc. I think that will probably be in the range though.

[fafa3838]

pictures

I know copper is 3.1 and zinc at 2.5gr. but this is the oddest I came across

[jfines69]

Pretty good pics... In mid 1982 the mints switched from a solid mix on the lincolns to a copper plate zinc planchet... The solids are 3.1 grams and the plated are 2.5 grams... Here is some more info on the coin make up and such https://www.law.cornell.edu/uscode/t.../subchapter-II 2.87 grams is a little on the heavy side but yours appears to be a plated cent... I see numerous plating (Gas) bubbles obv and rev and areas around the devices where the plating has been disturbed... The plating on the WNW side of Abes head looks rippled pretty good!!!

[Gatito360NY]

Jim it's right... but fafa Do not be surprised if one day some one find a 1983 solid copper
Screenshot_20170328-180415.jpg

[Gatito360NY]

Hey jim can you share your email to me on PM please if you don't mind.... Thanks

[fafa3838]

Thanks and that was my gut feeling too. It did get the old ticker pumping a little though. I'll put this to the side and move on to find another . Hey I at least got my aerobic training in and its fun not hard

[jfines69]

Thanks and that was my gut feeling too. It did get the old ticker pumping a little though. I'll put this to the side and move on to find another . Hey I at least got my aerobic training in and its fun not hard

Be careful tho... It can still give you a heart attack

[mikediamond]

If this is a copper-plated zinc planchet (and not a solid copper-alloy planchet), its excessive weight could be due to the zinc core being punched out of rolled-thick stock or it could represent a normal-weight zinc planchet with an abnormally thick layer of copper plating. I recall a proof zinker that weighed 3.5 grams.