No Eastern Europe or Asian knock-offs here; Genuine German, British, US made! Let me begin by stating I have almost no faith in claimed test results for vacuum tubes. My test experience includes a B&K 747, which I owned 7 years ago, and Hickok owned by others. I have had the same tubes on the same tester hours apart test differently (though not significantly) and had the same experience with the same tubes on different testers. IMHO, test results are accurate within a range and are by no means precise. Further confusing the issue is that testers really do not subject tubes to real use conditions. Finally, I have difficulty with the entire NOS claim which frankly is impossible to prove. [DEL]I offer these tubes based only on what has been represented to me and/or what I have experienced. Since the tubes are old and used, I cannot offer any guarantee. Buyer understands and accepts the risks associated with the purchase of old tubes. However, they have been inserted in audio, guitar and bass amplifiers and have performed well. I heard no pops, hiss, microphonics, etc. All of these tubes tested well into the upper half of the green GOOD area of my 747. There is also ample evidence that the older German, British and even US tubes are sonically superior, especially at the upper limits of performance as typically found in musical instrument gear.[/DEL] That said, the tubes [DEL]that do not sell will be[/DEL] have been sent to a boutique testing company and I have updated the information. [DEL]which will increase their value much as double! Then off to eBay at premium prices (with the associated fees and agony). I would much prefer to give real players a first chance. [/DEL] The tubes will be well packed and shipped fully insured CONUS for a fixed price of [DEL]$15 [/DEL]$10 per order, regardless of the number ordered. I am open to offers, but please do not waste my time or yours with low ball offers. PayPal only and I accept all the charges. I will try to keep the inventory updated with transactions. Please see the available list in the following post. Would consider trades +/- cash as appropriate for: 1) Mono Betty Black Sharkskin Short, 2) Mono Vertigo or M80 Single (prefer black), 3) Reunion Blues Continental (prefer black), 4) MIA Fender Jazz (excellent or better), 5) MIJ (no MIM) Fender Geddy Lee (prefer black, excellent or better), 6) Nordstrand or Fralin jazz split coil pickups, 7) Good quality hard case for jazz base, 8) Mesa V-Twin pedal.