2005d New Minnesota quarter error

After finding an error on a 2004d Texas quarter earlier today, I went
through my change and found _another_ error!

This is a 2005d Minnesota 2 error coin which I have not found mentioned
before.

Error 1: Meandering through the state of Minnesota is a flattish shiny
wide river, which extends above the state outline and follows the lower
right of the state.

Error 2: A straight light through the coin, visible only on the reverse
(the same side as the state map), slightly off of center; beginning
from the rim above Minnesota,extending downward in a straight line
through the first N in Minnesota, the "1" in 1858, the upper peninsula
of Minnesota, the second tree to the right of the state of Minnesota,
intersecting the far back of the loon's neck, continuing through the
loon's body, through the first "0" of 2005; bisecting the B of Pluribus
in "E Pluribus Unum", and finally joining the rim underthe B.

This is similar to the line I found in the 2004d Texas quarter.

Has anyone else seen such a line? It is a barely visible marking, and
is not visible unless looked at head-on. Tilt the coin slightly, and it
disappears.

Comments?

Daniel B. Wheeler