One 5Z3 tube, by National Union of U.S., new in box.

Black plate, bottom square getter, hanging filaments.

Test Ratings: 110/110 on my Jackson 648s tester, minimum is 70, new tubes at about 110 to 115.

SHIPPING: Shipping rates quoted are for USA and Canada only. Shipping rates to Europe and Asia are subject to slight variation. The buyer for those countries will be informed about the exact rate after the sale. 

Please pay in 3 days. Combined shipping is welcome. If you have paid for individual items and have surplus shipping fee paid for, I will refund you immediately when I send out the combined parcel.