I don't know what it is, but (perhaps) here's the link you intended.

~Rosemarie

Here is a link that might be useful: your link unk WW guy

Sorry about the bad link, I forgot to sign out before copying the link. This one should work.
Dan

Here is a link that might be useful: What is it?

That's a Notocactus, Cactus Dan, in my reckoning.

Perhaps N. herteri?

I thought about N. herteri, but the spines are slightly different color (variability?), recurve back a bit and there is no wool to the center of the top. Thanks for the guesses though.
Dan
Lincoln, NE USDA 5

What about Parodia erubescens or another one is Parodia roseolutea
Alfonso

or even P. tabularis???

Hi Dan!

CP

CP,
I think that's it, I'll have to wait until it blooms to be sure, but it looks right. Thanks.
Dan
Lincoln, NE USDA 5