106th Division "Golden Lions" (1943-1945); Ardennes & Germany. The division hit hardest during the "Bulge".
Unit patches actually had no prescribed regulation position when sewn to the upper sleeve, but usually they were placed 1/2"-1" under the shoulder seam. The wearer's current unit was sewn to the left sleeve, while any previous unit might be placed on the right sleeve. Shoulder patches were seen on all troops in the Normandy invasion, but as the war progressed, it was more common to see no divisional patches (especially on field jackets).

Divisional Patches: All the patches pictured on this page are reproductions. They may vary slightly from those in the photos as we use two different manufacturers, but they will be the correct size and color for W.W.II. All have "raw edges".

Originals: Additionally, we occasionally have a few originals mixed in. I'm not talking about white tongue 101, "greenback" 82nd, or other rare and valuable patches. We do know better. However, some of the patches may be original. Original patches are usually in new condition, but a few have been sewn on, yet are very clean. We won't send junk. However, my point here is this. If you MUST have perfection, no soiling, not an inkling of a stitch hole, then request a reproduction patch.

Historical Reference: Combat Chronicles of US Army Divisions in WWII is a good website for basic divisional histories. They also have lists of the sub-units (regiments and support battalions) assigned to each division.