This is for 2 (TWO) type 47 bulbs for your vintage Fender amp.  I have 7 in the photo, but for sure more kicking around so at least 4 sets.

These bulbs will all have been taken from 1958-1963 electronics (it’s all I ever bought).

I’ll try to pair them as far as possible if that’s what you want. Guaranteed working.

I also have a pair of 44 bulbs for sale, also a 45.  Not sure of the difference.