Used but test good. Various labels including RCA, GE, Sylvania, etc.

NOS in original Raytheon boxes. One blackplate, one grayplate both with solid plates, no holes. These match within 4mA.

Labeled and boxed as Mullard, but these are IDENTICAL to Gold Lions, Genelex, GEC, etc, which are merely brand names these were sold under in different markets. Black plates.