Planchette Variety

[GKoehl]

I have a 1940 one cent coin which was stamped on a plalnchett identical in diameter to that of a mercury dime.
In weight (grams) the thin cent weighs 1.7 grams while a usual penny weighs 3.1 gram, Viewing from the rims, the thin penny appears to be slightly 1/2 the thickness of other copper cents. condition is g-vg due to the light strike.
It appears to be well struck but light)and good color, but it is rimless

How can I know if this is a mint error or counterfit? If genuine, is there a market for this type of error?

I will greatly appreciate your comments.

[diamond]

If the coin is well-centered, with a uniformly blurred design on both faces, and thinned letters and numbers, then you coin was immersed in acid or another corrosive liquid. These "acid jobs" are abundant.

[GKoehl]

Planchette variety

The cent is neither blurred nor the letters thin; however, the word liberty is nearly unreadable. Too small,


Thanks for the explanation, on we go to the next item, whenever.