PAIR OF RCA PREMIUM CHOICE 6211 TUBES, 2013 PREMIUM CHOICE 10,000 HR 6211 VACUUM TUBES, These are the pick of the litter Premium choice 6211 tubes with a number of 2013. They're all closely matched internally and will be tested for quality control before I send them out to you on my Near Mint TV-7D/U. I have quite few, So I'll make sure you're getting nice tubes. Thanks and enjoy..