Amperex 6DJ8 ECC88 Vacuum Tube Pair

Got a pair of vintage Amperex 6DJ8 / ECC88 vacuum tubes here. These are the classic "Bugle Boy" era ones made in Holland, which any audio person knows are the good ones. The labels are a bit faded but you can still see the orange print clearly enough. I haven't tested these on a tube tester recently so I'm selling them as-is, but they look clean with no cracks in the glass. Great for upgrading a preamp or some vintage gear if you want that warm European sound.