Discussion in 'Coin Chat' started by bkozak33, Apr 2, 2014.
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The speed of light.
It hasn't been that long:
I think you are the one that originally brought the tissue paper test to everyone's attention. Perhaps you invented the test?
This is an example of one of the earliest silver coin tests. This may have been one of GMJMSP's earliest attempts (before the invention of tissue paper).
Other way around. Silver is the most reflective of metal, something like 95% of all the light that hits silver is reflected. The copper nickel clad reflects much less so the silver coins show white through the tissue and the coppernickel are much darker.
Maybe here on this forum, but I first heard of the idea from Conder many years ago on the old Coin World forum.
And green - gonna getcha for that
I'm guessing if a coin is plated, it's going to appear just as bright, but it would be nice if that wasn't the case.
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