Hello,
In 1940 the Heer changed there facing color to fieldgrey and their insignia became subdued. Here is a 1940 enlisted breast eagle, uncut, and then a cut and folded one. These breast eagles come in various shades of field grey.
I have a little time before I head out for supper. How about a couple more.
2nd pattern Heer enlisted man's breast eagle Unused, uncut, unfolded
A cut and folded example.