Pair Burroughs JAN 6844A Military Spec Nixie Tubes, USA, New, Matching Batch numbers, date codes. They have the incomparable vintage USA Military Spec Design, Craftsmanship, attention to detail and performance that only vintage USA Military Spec tubes can offer. The shipping cost includes safe packing, insurance, prompt shipping and tracking number. Buy with confidence, see my feedback. Good Listening, SonnY :)