This listing includes a matched pair of vintage Cunningham CX-345 engraved base, globe, black plate tubes that recently tested very strong. These tubes were tested on a recently calibrated Hickok 539C dynamic mutual conductance tube tester and they tested very strong at 2200 and 2200 (nominal = 1850) with no shorts or leakage. As the photos show, these tubes are very clean for their age and they come in their original boxes with the original packing material and paperwork shown in the ...photos. Even the original boxes are in great shape for their age. These particular tubes are becoming harder and harder to find, especially in this great of condition and in their original boxes, don't miss this opportunity to own them. Own these Cunningham CX-345 tubes for a great price. This item is not available for local pickup, it will need to be shipped to your location. All of my items are packed very well for a safe trip and I include full shipping damage insurance coverage with all of my items. International buyers may be responsible for customs fees, import taxes, and duties.