Lightly used, test as new matched pair. 

5881 and 6L6WGB designations are interchangable and the tubes may have either or both designations. Lightly used, test as new. NOS (unused) examples are very expensive, so this is a great way to get in on the TONE! The bases are various shades of brown and may not match. 

NOS in original boxes. Labeled and boxed as Sylvania, GE and RCA.

ANOS = Lightly used, test as new. Great alternative to Tung Sols.