stoll Posted November 15, 2012 Posted November 15, 2012 hi all im new to all this, but i have a coin in my change with what i believe is a copper plating error.i havent realy got a clue but been trying to research with no joy.this is a 2001 1penny uk, magnetic as i tested it, with slight multy tone aswell as some of the balls are flat underneath the number1. maybe a misprintany help is more then none and i would very much appreciate it. cheers Quote
Peckris Posted November 15, 2012 Posted November 15, 2012 hi all im new to all this, but i have a coin in my change with what i believe is a copper plating error.i havent realy got a clue but been trying to research with no joy.this is a 2001 1penny uk, magnetic as i tested it, with slight multy tone aswell as some of the balls are flat underneath the number1. maybe a misprintany help is more then none and i would very much appreciate it. cheersModern "bronze" is just copper-plated steel. You have one where the copper plating has not taken, yes. Interesting curio, so hang on to it if you like it. (Don't make retirement plans though ) Quote
stoll Posted November 15, 2012 Author Posted November 15, 2012 hi all im new to all this, but i have a coin in my change with what i believe is a copper plating error.i havent realy got a clue but been trying to research with no joy.this is a 2001 1penny uk, magnetic as i tested it, with slight multy tone aswell as some of the balls are flat underneath the number1. maybe a misprintany help is more then none and i would very much appreciate it. cheersModern "bronze" is just copper-plated steel. You have one where the copper plating has not taken, yes. Interesting curio, so hang on to it if you like it. (Don't make retirement plans though )nice 1 but a shame i cant retire yet hahaha. thank you for the info. any chance you would know the value of this coin? Quote
Peckris Posted November 15, 2012 Posted November 15, 2012 hi all im new to all this, but i have a coin in my change with what i believe is a copper plating error.i havent realy got a clue but been trying to research with no joy.this is a 2001 1penny uk, magnetic as i tested it, with slight multy tone aswell as some of the balls are flat underneath the number1. maybe a misprintany help is more then none and i would very much appreciate it. cheersModern "bronze" is just copper-plated steel. You have one where the copper plating has not taken, yes. Interesting curio, so hang on to it if you like it. (Don't make retirement plans though )nice 1 but a shame i cant retire yet hahaha. thank you for the info. any chance you would know the value of this coin?1 penny, I think you said? Quote
stoll Posted November 15, 2012 Author Posted November 15, 2012 probably been in acidif in acid i would have imagined the whole coin to be affected not just a liitle bit as shown. as acid makes a mess of anything Quote
Gary1000 Posted November 16, 2012 Posted November 16, 2012 probably been in acidif in acid i would have imagined the whole coin to be affected not just a liitle bit as shown. as acid makes a mess of anythingAcid will affect all areas equally so the thin areas will go first, but you will retain a surprising amount of definition Quote
Peckris Posted November 16, 2012 Posted November 16, 2012 Most of us on here are on acid Speak for yours-- |||||||--OOOOOOOOOH Quote
Sword Posted November 17, 2012 Posted November 17, 2012 probably been in acidif in acid i would have imagined the whole coin to be affected not just a liitle bit as shown. as acid makes a mess of anythingAcid will affect all areas equally so the thin areas will go first, but you will retain a surprising amount of definitionPutting a penny into concentrated nitric acid is a fun school "experiment". The copper gets oxidised leaving the steel penny behind. If done properly, you will end up with a very nice steel penny with the details of the coin preserved. If you are in a bit of a hurry and put a load of pennies in (with some on top of others), you often end up with patches of copper on the pennies. (However, poisonous brown fumes are produced in the process and it is not something to try at home!) Quote
stoll Posted November 17, 2012 Author Posted November 17, 2012 yah thanks for the advise and believe i aint into chemicals so im not the one to do this.dont kow bout the whole acid thing on this one. but apreciate the commentscheers Quote
DaveG38 Posted November 18, 2012 Posted November 18, 2012 (edited) probably been in acidif in acid i would have imagined the whole coin to be affected not just a liitle bit as shown. as acid makes a mess of anythingAcid will affect all areas equally so the thin areas will go first, but you will retain a surprising amount of definitionPutting a penny into concentrated nitric acid is a fun school "experiment". The copper gets oxidised leaving the steel penny behind. If done properly, you will end up with a very nice steel penny with the details of the coin preserved. If you are in a bit of a hurry and put a load of pennies in (with some on top of others), you often end up with patches of copper on the pennies. (However, poisonous brown fumes are produced in the process and it is not something to try at home!)Dinitrogen Tetroxide - N2O4 Edited November 18, 2012 by DaveG38 Quote
VickySilver Posted November 18, 2012 Posted November 18, 2012 Ummm, 12 molar HCl can get you an explosion with a penny dropped in it. How do i know? Uhhh, don't ask! Quote
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