[thabaer]

I'm betting on velvet being the key hint, as the ones like in the photo are fuzzy. Just don't want to steer anybody into getting the wrong part, what you said about two pieces jives with a second velvet strip (50 in the drawing) 911 564 193 00

The drawing really does not help a lot. the 409 parts are above the first strip we named in the drawing. The velvet strips are at bottom left and top right, you'd think the drawing would show them closer together.