Perhaps someone can use this?

[bandersen]

Originally Posted by TubeType

Bob,
Boy, that Rauland box sure triggered a lot of old memories lost up there in my cranial cobwebs.

I was very happy to get the original box and paperwork. I didn't look like it had ever been used.

Originally Posted by Tubejunke

Wow! That on the left is interesting. A lot of my vintage test equipment and NRI stuff came from a pile of stuff that a friend found on the curb after an old repairman died and his wife decided to sweep his memories to the dump. Anyway, out of all of the stuff that I did get, I DIDN'T get a bunch of maybe 4" round crts with a grid of some sort on the face. The socket and neck seemed to be the same size as any 40s-50s tube. I thought that they would just be more useless stuff taking up space, but now I wonder if some museum might be interested in them. They are still there as far as I know. The one in your picture looks like the neck is much smaller than the others.

I've seen a number of 8YP4s with a grid on them. Mine uses a tight fitting plastic film with the GE logo in one corner.
Yes, the neck is the smaller type used on newer, more rounded B&W CRTs.