Supex SDT 1000, excellent condition, a couple of tiny marks. A superb step up but I've bought a posh audio note SUT to match my io, so this may as well go.
Sounds great with the io and matches with most vintage cartridges, such as Supex 900, 1000, 1100, 2200, Koetsu, Kiseki, Dynavector Karat...