These are the real deal folks! I scored several sleeves last summer and kept 4 for my Dodd Audio amp and had 2 left over.
I am only selling these to fund a DAC purchase so not going to budge on price.
I don't know if these were a pair of the matched tubes or not as I don't have a tester. When I bought them from to old man who owned the radio repair shop...they all tested VERY close to each other "27 matched pairs" so it would be a pretty safe bet that they are closely matched.
and YES...they are NOS!
If you have a DAC you might want to use as trade material...let me know what you have?!?