Why Are Some Bronze Coins Light and Some Dark?

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Information Why Are Some Bronze Coins Light and Some Dark?

Title	:	Why Are Some Bronze Coins Light and Some Dark?
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Can you do a video about maundy Money please?
Comment from : TheWalrusWasDanny

I have 6 coins One Penny : Georgivs V Dei Gra : Britt:Omn:Rex Fid:Def:Ind:Imp, 11911 ( 1 coin, bronze light and some dark ), 2 1916 ( 1 coin bronze ), 3 1919 ( 1 coin bronze ), 4 1928 ( 1 coin bronze ), 5 1965 ReginaF:D:+ElizabethIIDEIGratia ( 1 coin bronze ), 6 1967 ReginaF:D:+ElizabethIIDEIGratiabr( 1 coin bronze), Thanks
Comment from : Andi Prapancha

To have a half penny like them
Comment from : Gloria FREDSALl

Just wondering,, if you know about the 1953 penny, both sides of the coin, have different beading around edge of coin, I read it in newspapers about 5 years ago Enjoy your vids cheers
Comment from : Tom Hunter

Dear Paul, what about toned penny coins You must have seen them by searching thousends of pennys Can you do a video about this topic? I am buying alot of kilo's worldcoins for seaching for toned coins About 200 toned englisch coins are now in my collection Greetings from netherlands
Comment from : henk omvlee

Hi Paul, excellent video Happy New Year to you and your family 👍br
Comment from : Ian Strudwick

I guess these color differences also apply to hay pennies?
Comment from : Gerrit Leemburg

I know they artificially darkened the farthing blank's form 1897 to 1915, the process exposed the blanks to Sodium Thiosulphate and used to avoid a bright farthing being passed as a half sovereign in 1915 the gold standard was dropped and in 1918 no half sovereign were struck UK farthings reverted to a bright finish However the gold standard in South Africa continued for some time further and darkened farthings continued to be issued there brI have a 1/3rd farthing issued for use in Malta, which has clearly been darkened (not just a different tin level) but I have no idea why, if any of your viewers do?
Comment from : Peter Perigoe

Neat info vid I always thought it was metallic make up, some coins don't look heavily circ but have dark toning
Comment from : Master Temples Treasures

Excellent vlog
Comment from : Tony Baloney

Marry Christmas and Happy new year
Comment from : Miyas PowerConstruction

Hi i have circulation pennies from 1903,1907 ,1911 and 1912 any buyer
Comment from : Miyas PowerConstruction

Interesting again! Just thought it was muck? 👍👍👍
Comment from : Michael Taws

Very nice video again Paul This explains a lot I personally prefer the Heaton dark coloured types Have a happy Christmas Buddy !!
Comment from : Keith Hitchman

Merry Christmas to the Coin Patrol household I think you're on the right lines in saying the colouring is due to the mix of metalsbrI know some farthings were artificially darkened (Edward VII and early George V and (could be wrong here)I have an inkling that some pennies were as well
Comment from : Graham Turner

Interesting - so how about some history on those Birmingham factories pse? 🤶🍀💜
Comment from : TenBob

Thanks for this CP I’ve often been fascinated by the range of colours/shades when watching your old penny hunt videos (in fact I think I commented on this very subject on one of them)
Comment from : John Camp

I believe that it is the percentage of tin in the alloy that is responsible for the diifferent colours The higher the tin content, the darker the colour Tin lowers the melting point but also makes the alloy harder Pre-1860 copper coins without the tin seem to be predominately the 'milk chocolate' colour And I think KN coins always seem to turn up in a much more worn condition than the H coins, also suggesting a higher copper/lower tin content that the Heaton ones making them softer and more susceptible to wear
Comment from : Herbidaceous

"Who is Number 1?" 😁 I've visited Portmeirion, but luckily there were no Rover balloons about! 😂 Some notable ghosting on quite a few of those pennies 🙂
Comment from : MackemMoolah

Merry Christmas to the Coin Patrol household, I trust you will be cooking the Xmas dinner whilst Sue is spoilt rotten😀
Comment from : Ian Ritchie

I notice pennies on some dates 1944 & 1945 have tarnished badly similar to the decimal coppers during 1970's, this could be a lack or no tin ingredient, perhaps by adding tin 4 or a little more the coins become a little denser resulting in a better quality copper coin, longer lasting, wearing & tarnishing less over time
Comment from : Malcolm Watts

Very Interesting Paul Thanks for sharing Paul Have a Great Christmas 🎄 👍
Comment from : John Saunders

Another interesting video of yours Thank you for sharing :-)
Comment from : Tommy Andersson

I had to laugh about the circulation theory I remember when Birmingham WAS the colour of the old 'black' pennies, but since the ceasing fossil fuel use and the decline in the industry many of these old buildings have had a good facelift and are clean; although there are a few uncleaned oldies left As for taste Paul, a still recall the taste of the old 'coppers ' as we referred to them, as most kids at one time gave them as a lick My sister for one came out with a red rash around her lips after sucking on an old penny Thanks for the presentation Paul it was very interesting
Comment from : Stacey Grove

Sorry not a metallurgist but a fascinating topic especially over Christmas dinner or a pint Happy Christmas in the Coin Patrol household 👍👌
Comment from : Mr & Mrs Snappy

Very interesting Paul
Comment from : Peter Weston

Interesting Thank you for showing us
Comment from : Silver Gopher

I have a 1917 which look lighter, but might have been polished
Comment from : Paul P

Catalogs (eg Krause) say some were intentionally “darkened” (using a light acid) I was told it was to discouraging “hoarding” of new coinage, but I haven’t been able to verify that
Comment from : Jim Kindrake

Very interesting! I wonder if there's ever been scientific research on these to determine where the planchets were made I think many older coins have slightly different compositions, like the old USA Morgan silver dollars that often aren't exactly 90 silver and 10 copper
Comment from : Alrik

very informative, thanks for taking the hit on the taste test
Comment from : Crypto Hobo

Your theory seems to hold true, fascinating 🧐 🤔💭brbrGreat stuff 👍🏻
Comment from : smiffy7890

Tina A Waworundeng (@tina155) MONEY ABOUT

Why the coin another one is light and the other is dark? May be one coin is new and the other one is old coin
Comment from : Tina A Waworundeng (@tina155) MONEY ABOUT

MetalbrGuru happy Xmas CP
Comment from : 2coinaphrase

This is a very interesting topic and in fact not exclusive to bronze coins Over here (Poland) after 1975 the 2 and 5 złotych coins were composed out of brass and minted in Warsaw and Leningrad - with a difference in colour between the two mints It's not very strong and mostly visible on uncirculated examples but still there!
Comment from : MD