Probably a good price for that bunch of marbles. Shouldn't let the box distract ... but it does. I agree it looks like a scarf box or some such. "Original box with inserts" ... pshaw!
If it's the marble I'm thinking of, I would just call it a Bullseye. Or Bulls Eye. Or Bull's Eye. lol ... I don't know how to spell it.
But it's been described as being in the Conqueror family, so Bullseye Conqueror sounds fair.
Here's a thread I posted asking about them long ago, has some pics:
http://marbleconnection.com/topic/7323-what-is-a-vitro-bulls-eye/
Here is a list. It's a couple of decades old, from Marble Collectors Society of America, Marble Mania Newletter, January 1990, Volume 57
MARBLE FORUM SULPHIDE PROJECT, Blogspot
Any one game to read it all and suggest additions?
Winnie, Roger's looks so foreign to me, I wasn't sure it was made on this planet. I thought about suggesting a planet in the Rigel system.
I still don't know what to think of it. That's why I was happy just waiting for what everyone else would say.