Mullard E88CC Matched Pair Wrinkled Glass - Mitcham 1958 7L0 - Same code - NOS

Perfect matched pair of vintage Mullard E88CC 6922 Tubes Wrinkled Glass edition -  Mitcham 1958 - NOS - Ultra Rare Product Summary  The classic example of "what you see is what you hear" magic of vintage tubes! The super rare wrinkled glass on these tubes is not just for your eyes but also for your ears - because of the special glass the extension of high frequency is limited, which makes these Mullard tubes extremely sweet sound and non-fatiguing. And yes the "British Made" lettering is a BIG deal not only because it certifies the tube's true Gt. Britain origin but also because it appeared on select batches of Mullard tubes from select years of manufacturing only.  Sound Qualities "Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions."  This is how experts on audiotubes.com describe the sound signature of Mitcham Mullard tubes. The top end is silky and pleasant and doesn't get rolled off. They reta