I found a posting where someone was looking for this tube for the Moto Astronaut set, a seller on eBay has one.

http://www.ebay.com/itm/Vintage-NOS-Sil ... 43ac26045b

It amazes me looking at the ebay posting picture of those Silver Glow boxes, of how clean they look, like they could have been boxed up last week. Obviously were kept in very clean climate controlled storage.

The box was a little "Crispy" with age, the bottom was coming loose on mine, but yeah, for 40+ years old they're in great shape.

Wish someone would find a cache of 10 & 12 inch roundies, or maybe a hundred or so 7JP4's.

As mom would say, "Wish in one hand, ....". (I will let you fill in the rest...)

You better believe that there are countless stashes of antique CRTs in this country. I know there are. Early color, b/w, even electrostatics and vectors. CRT was king til around '02-that's a lot of time.