Lot of 6 extremely rare filament numitron tubes IV-13. Came from the factory box. MATCHED SET of 6 TUBES WITH SAME DATE CODES 8407. See my positive feedbacks for IV-13. The item "6 x IV-13 NUMITRON FILAMENT NIXIE VFD TUBES for DIY clock -13 RARE" is in sale since Wednesday, March 11, 2020.This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "don69-andy" and is located in Dnepropetrovsk. This item can be shipped worldwide.