I've some. 1.5" wide, still got fuzzy bits on them.
They're not a top name but as they're in the shed being guarded by ninja spiders, I'll have to wait until daylight to check the name (if interested).
Price £12.50 posted.
I used to use all those skinny high psi slick tyres, but now use Maxxis Hookworms. They are a 2.5 that can be pumped up to 65 psi. Ok they may be a bit heavier, but are fast rolling and look more natural on a MTB too.
Got a pair of continental sport contacts & suitable inners for 26" wheels I never use - they came on a wheelset I bought. I'll check them over when I get home, if I remember rightly they appear to have had very little use.
Like the look of those matey but they are very narrow, last pair of slicks i had were about 1.9 iirc. Will let you know just waiting for a couple more possibilities to look at