1910 MPL reverse diagnostic........question?

SUMORADA

Albrecht (1910) Reverse; raised lines from lower left and lower right of M in UNUM are caused by damage to the master die and appear on business strikes as well. However, he scratch from lower inside corner of the M in UNUM is diagnostic of this Proof die."

We know that this diagnostic is also seen on other MPL dates, My question is, can this same diagnostic be found on a 1910 business strike?

robec

<< <i>"However, he scratch from lower inside corner of the M in UNUM is diagnostic of this Proof die." >>



This diagnostic would only be found on Proofs, unless someone knows if this Proof die was used for business strikes as well.

SUMORADA

Here is the reason I asked, I was under the impression that this diagnostic appearing on a 1910 Lincoln meant it was a Proof also,
This coin does not look like a proof to me....