Very desirable beautiful matched quad of early brown base military short bottle black plate chrome tops with very good print. This tube is killer, known for detailed, clean open sound, good bass and high-end, not colored or tubey, very quiet and non micro phonic. Excellent readings of 93/94, 96/95, 96/100, and 100/94 tested on a very well calibrated TV-7 tester.The silver flashing is so bright I would guess NOS. Paypal add 3% and $8 for shipping in USA. Priced very well as has been reduced.