AT Pro and gold coins

[Gridwalker306]

I realize that gold jewelry is alloyed with other metals, resulting in a wide variance in conductivity...but how do gold COINS sound/register on the AT Pro, anybody know? I would test it out myself, but unfortunately I'm fresh out of gold coins. This year I'm going to hit the place hard where I found my Morgan dollar, Barber halves and IH pennies last year. I figure if people lost big silver there, why not a gold coin or two?

 

[Bart@Big Boys Hobbies]

Good post! I would like to know this myself. I'm gonna guess in the "50's.

 

[cosmic]

1909 D $5 VDI 67-68

 

[gleaner1]

Most US or Canada coins gold or silver are alloyed. Regular US gold coins are alloyed 10% copper, as well as the silver coins. Canada silver coins are Sterling, 92.5% silver, 7.5 % copper. Canada is well known for it's modern gold bullion coinage, which is not alloyed, and is essentially pure gold. I think modern US gold coins are still 90/10 but not sure.

 

[Gridwalker306]

Thanks for the information guys. Guess I'm gonna have to dig dig dig!