Yes pennies will read a different vdi number because of different metal over years

[49er12]

Yeah I was dumb before say what, most of you knew that copper gives different reading than zinc or whatever used today, point is dig it don?t pass over something good numbers help but ot always accurate. What are pennies made of now vs way back to educate us all, thankyou

 

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[Toecutter]

Iv dug Indian head cents from 15 to 26 with the nox, Iv noticed the thicker the oxidization the lower they read...

 

[Clad2Silver]

In 1943 pennies were made of zinc coated steel. Some of the pennies from the mid 1940's were made from "shell case copper" which was metal derived from recycled artillery shells.

 

[islamoradamark]

always dig those pennies you just never know what it is