A set of 4 for sale, off my uncles Toyota Prius. He drove it for the summer, then pulled the all seasons for snows, then sold the car in the spring before switching the tires back. I'd guess these have less than 10,000km on them, you can still see the factory ink.
Specs: Tread 460 Traction A Temperature B
(7.3mm comes out to 9.2/32, new is 10/32 though I'd bet brand new ones wouldn't be much more than 7.3mm...)
$63ea new from tirerack, i'd hate to think what a blaskins or OK would charge locally. First $100 takes them all, great if you just need a set of low performance all seasons for your beater or something.