I found this lucky penny detecting Panama-California exposition San Diego 1915

[mikeya]

this thing is 2 3/4 inchs copper over pot metal I have done some research and cant find the coin or its value?

 

[BigWaveDave]

That is a mack-daddy penny!!!

Never seen that before..size if a plate? very cool....nice find!

 

[Loco-Digger]

All I did was type in 1915 lucky penny and I got hundreds of sites. Can be worth $20 to $50.

 

[mikeya]

I have tried that and still cant find it i will keep looking

 

[mikeya]

I found one for sale 265.00 but in a lot better condition than mine.

 

[RobRieman]

I have tried that and still cant find it i will keep looking

Type it into Google. So many hits it will make you mind spin.