LWC 1916-D: Is There Doubling And Are Those Tool Marks?

The stretch marks on the reverse are called die flow. The metal is pushed into the shape the die wants under very strong pressure. This causes wear on the dies. As the die ages, then the flow lines start to appear. Some flow lines are polished off every time a die is worked over. So they may come and go, but the fields suffer. The devices start to look thinner when the depth of the devices are reduced. Sometimes lines of the roof, neck and even numbers maybe thinned. But that is all part of the die wear/abrasion the die suffers.

On the obverse, the 1916 obverse dies have a stronger design that year on many denominations. So to see the marks like that on the beard, for this year is common. Other years you don't see it as much, but because of the nicer design this year, we note it when we come it to other years. Here is one that purchased a few years back:

This also was the last year of the matte proofs:


The die on the obverse is showing die wear, but because the extra design effort was applied that year, the devices detail lasts a little longer.

Most informative discussion as always.