Each tube comes with Test Date Sheet in a pair Gift box. The item "One Pair COSSOR 300B Audio Tubes Meshed Plate Blue Glass/ Gold Pin / Metal Base" is in sale since Tuesday, August 25, 2020. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "bugleman" and is located in Hong Kong. This item can be shipped worldwide.