I got me a set of, "Pilot," branded 12AX7's from West Germany, ribbed plates, two notches on the outside of the plates, a small D notch at the ridge of the plate side, and the halo getter has two stems to it. I stuck one in V1 of my Marshall and it has a lot more open top end to it for sure, I kinda dig it! Can anybody tell me what it actually is? Siemen's? Telefunken? For what it's worth, the pair was $40 being sold as Holland tubes, but they sure as sh*t say West Germany on them. Here's a pic: http://i42.tinypic.com/b7yhhc.jpg.