Gordon,
we must differentiate here between the law and the regulations of the Bundeswehr.
In the law, the arm shields and the Bandenkampfabzeichen were permitted to be worn, and this is still valid today.
The Bundeswehr said yes, but it was not allowed, to wear the arm shields in the original size on the uniform. They could be worn only on the ribbon bar.
The Bandenkampfabzeichen was allowed to wear on the uniform and the ribbon bar too, but late in the 20th century, the Bandenkampfabzeichen was no longer allowed in the Bundeswehr; clearly too late!
2010 allowed, 2016 not allowed.
Uwe