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moonstears
03-26-2011, 09:28 AM
in a British or Australian Large cent (Penny) from the early 1900s. I think they're 95%, is this correct, % of a LB of Cu are they? What about the 60s ones? Thanks in advance.

Cajus
03-27-2011, 06:06 AM
The British penny is a stunning history lesson in devaluation.

A gold penny in the name of Coenwulf, King of Mercia (796-821) sold for 230,000 in 2004.

"From about 1200 AD to the end of the 18th century, they were made from silver... Silver became far too expensive to be making low value coins from, so they were then made from copper from 1797..."

"During the reign of Queen Victoria, Pennies changed to bronze from 1860 until the last predecimal Penny was minted in 1967. Bronze is mostly copper, but the alloy of 95.5% copper, 3% tin and 1.5% zinc made them a lot more durable and subsequently a little cheaper to produce..."

http://wiki.answers.com/Q/What_is_a_British_Penny_made_from

Here it says "Between 1839 and 1860, the penny was made of 18.8 grams of copper and was 34 millimetres in diameter. From 1860 onwards, bronze (an alloy of 95% copper, 4% tin, and 1% zinc) was used instead..."

http://en.wikipedia.org/wiki/History_of_the_British_penny_%281714%E2%80%931901% 29

"The penny of King Edward VII (19011910) is of the same technical standards as the late Victorian issues..."

"...the alloy composition was changed in 1925 to 95.5% copper, 3% tin, and 1.5% zinc...The worldwide shortage of tin during the Second World War caused a change in the alloy in 194445 to 97% copper, 0.5% tin, 2.5% zinc...

...The 97% copper, 0.5% tin, 2.5% zinc alloy was used again for the 1960s pennies..."

http://en.wikipedia.org/wiki/History_of_the_British_penny_%281901%E2%80%931970% 29

You might find more information in a book "History of British Coinage History of British Coinage: Threepence, History of the British Penny Threepence, History of the British Penny" ISBN-10: 1157067093, ISBN-13: 9781157067092

The reference to the change in 1925 seems to suggest that the composition 95% copper, 4% tin, and 1% zinc is the right one for the late Victorian issues, as otherwise it would not be a change!

Cajus
03-27-2011, 09:05 AM
Right Feral child, and what's more, today's penny is just plated steel!!

uksilverhoarder
03-29-2011, 08:09 AM
been copper coated since 92/93 I believe... Ive been collecting pre 92 pennies/2 pence for a while now.. A ton would be cool :D

moonstears
03-29-2011, 08:22 AM
So they're 9 grams Cu, or about 3 US cents worth of weight?

lao tzu
03-31-2011, 11:51 AM
i also collect uk copper pennies,2p and 1ps.lately i have noticed there are not many of them about,theyre used to be loads but they are all copper coated ones now!perhaps the mint is sneaking them back, else there are a lot of hoarders out there,i think up to 1992 they are 95% copper?

uksilverhoarder
04-07-2011, 04:10 PM
I think the banks are pulling them in too and replacing them while adding more of the clad ones.. I reckon I get about 20% copper in my change now.. sometimes I dont see any for a while.. I did raid my sisters penny jar a while back and out of 10 I got about 1kg of copper 1p/2p..