No Date Lincoln Memorial Cent Mint Error - Split Planchet Struck Through Unstruck Planchet - 0.68g

Fantastic coin, and good discussion topics.

I absolutely agree with TB. The obv appearance has all the earmarks of a struck through.

A split after the strike produces a completely different surface (where the two halves were joined), compared to this one.
A split after the strike would produce a "linear" looking uneven surface similar to "laminations" that have separated.

I am late on this topic.
1. Could be a very thinny planchet before 1980.
2. Could be split on the blanking procedures (I saw some totally split planchets on this step.
3. Another thing I saw was the planchet was split during the milling.

For me the No 2 and 3 are more realistic. No 1 is know happened but it is a mistery how could happened because the rolling are cut on the ends, and on the middle of rolling you can not have this differential. I saw this kind of verry thinny planchet on old Silver Dimes not on modern cents. Mike saw much more.

Other topic here was after strike. The answer is clear NO. If was after strike or in the process of striking, the surface will show the molecular pattern.

For me the big mistery it is: I see rims, so this blank pass the milling without deform and after glue to an normal planchet during the annealing and then dettachet due to the strikes forces. This it is the Mistery. Other option it is was an man made error, but one of the most inventive ever see.

Silvio

Thanks everyone for an excellent discussion of a nifty coin. Special thanks to Mike for such a clear analysis.