Up for sale here is this set of 2 NOS NIB RCA 6BQ7 tubes. One has a "CZ" date code, for 1970, and the other has an "LM" date code, for 1959. They both look like they're pretty similar, though, so I'm not sure if the 1959 one is actually from that year. These are untested but are guaranteed to work great for you. Please see my pictures for details.US shipping and handling is $5, and international is $18. If you have any questions, please ask.I have a number of other tubes & sockets, collectibles, Magic cards, and vintage electronics listed--feel free to take a look!